How did Stalin gain and hold on to power?

Cambridge IGCSE History 0470 · Paper 1 Section B, Depth Study C Syllabus: 2027 and 2028 Depth Study C: Russia, 1905 to 1941 Key Question 3 of four

This file covers one Key Question, and that Key Question is two questions joined by an "and". The first half is a leadership contest inside the Communist Party that Stalin won when almost nobody expected him to. The second half is what he did with the state once he had it: the Purges, the Terror, the labour camps, the secret police, the propaganda, the schools, the churches and the national minorities. Cambridge sets both halves and does not always tell you which one it wants, so this page teaches both and marks the join.

It runs from Lenin's death to 1941. The syllabus stops the whole Depth Study at 1941 and so does this page. Nothing about the German invasion, the Great Patriotic War or Stalin's later years earns a mark here.

Three neighbouring pages own what this one does not.

Key Question 2, "How did the Bolsheviks gain power, and how did they consolidate their rule?", in the file dsc2-how-did-the-bolsheviks-gain-power-and-how-did-they-consolidate-their-rule.md, owns everything up to Lenin's death: the Provisional Government, the seizure of power in 1917, the Civil War, War Communism, the Kronstadt Rising and the New Economic Policy. If your answer is about Lenin's Russia rather than Stalin's, you are on that page.

Key Question 4, "What was the impact of Stalin's economic policies?", in the file dsc4-what-was-the-impact-of-stalins-economic-policies.md, owns the Five-Year Plans and collectivisation as economic policy: why they were introduced, what they produced, how successful they were and how the Soviet people were affected by them.

The line between this page and Key Question 4 is the hardest line in the Depth Study, because the same events sit on both sides of it. Collectivisation destroyed a class Stalin regarded as a political threat and also tried to raise grain output. The Five-Year Plans built an industrial base and also gave the state a grip on every worker in the country. This page owns those policies only where they operate as instruments of political control. Section 5 sets out exactly where the line falls, in Cambridge's own words, and section 7 shows the two Paper 1 questions in which Cambridge itself put the boundary in the question stem.

Everything about how this paper is marked, including the (a) 4, (b) 6 and (c) 10 split, the three level ladders, the two rule changes that landed in 2024 and the sentence shapes that reach the top band, is on the separate page How Cambridge marks History 0470 Paper 1. That page covers Section B explicitly, which is where this Key Question is set. Read it before this one. None of it is repeated here.

1. What the syllabus actually asks

This is the wording printed in the Cambridge IGCSE History 0470 syllabus for 2027 and 2028, on the Depth Study C page. The syllabus writes its date ranges with dashes; they are written out in full below, and nowhere else is a word changed.

Key Question 3

How did Stalin gain and hold on to power?

Focus points

• Why did Stalin, and not Trotsky, emerge as Lenin's successor?
• Why did Stalin launch the Purges?
• What methods did Stalin use to control the Soviet Union?
• How complete was Stalin's control over the Soviet Union by 1941?

The specified content, and which parts of it are yours

Cambridge prints one Specified content list for the whole of Depth Study C. It is not divided between the four Key Questions, and the syllabus gives you no instruction about which item belongs to which. This matters, because the syllabus's own definitions page says that specified content "provides guidance on what needs to be studied for each key question", and then prints it undivided. Do not go looking for a per-Key-Question list. There is none.

Here is the whole list, in full, exactly as printed. The bolded items are the ones this Key Question owns.

• The main features of Tsarist rule and Russian society before the First World War:
• the 1905 Revolution and its aftermath
• attempts at reform
• The First World War and its impact on the Russian people
• The March Revolution of 1917
• The Provisional Government and the Soviets, the growing power of revolutionary groups
• Reasons for the failure of the Provisional Government
• The Bolshevik seizure of power, the role of Lenin
• The main features of Bolshevik rule, the Civil War and War Communism, and reasons for the Bolshevik victory
• The Kronstadt Rising and the establishment of the New Economic Policy
• Lenin's death and the struggle for power
• Reasons for Stalin's emergence as leader by 1928
• Stalin's dictatorship:
• use of terror
• the Purges
• propaganda and official culture
• Stalin's economic policies and their impact:
• the modernisation of Soviet industry
• the Five-Year Plans
• collectivisation in agriculture
• Life in the Soviet Union:
• the differing experiences of social groups
• ethnic minorities and women

Five bulleted items are yours: Lenin's death and the struggle for power, the reasons for Stalin's emergence by 1928, and the three sub-items under Stalin's dictatorship. The economic policies belong to Key Question 4. "Life in the Soviet Union" mostly belongs to Key Question 4 as well, but the treatment of ethnic minorities is a real overlap and section 5 explains why.

Four focus points, four ready-made essay titles

Each focus point is already a 10-mark question. Cambridge has set every one of them, in almost these words, in the papers read for this page.

Revise them as arguments with two sides, not as topics. A topic gets you Level 2. An argument with one explanation on each side gets you 7.

2. Where this Key Question is set on the paper

The Depth Study C slot

Section B is headed "SECTION B: DEPTH STUDIES", begins at Question 9, and gives each Depth Study two consecutive questions in syllabus order. Depth Study C is Questions 13 and 14. That was confirmed here independently, by opening every Paper 1 question paper from March, June and November 2018 to 2024, forty eight papers, and reading the printed heading. It holds in all forty eight, including the 2024 papers where the heading changed from capitals to sentence case.

Papers from 2018 to 2023 ran to Question 22, because there were then seven Depth Studies. From 2024 there are five and the paper ends at Question 18.

A pattern the general rule does not predict

The marking page states, correctly and in general, that Cambridge does not tie a Key Question to a slot within a Depth Study. Inside Depth Study C, the record is more lopsided than that warning suggests, and you should know it while not relying on it.

In all forty eight papers, Question 13 was set on Key Question 1 or Key Question 2, and never on Stalin. Twenty five of the Question 13 stems were on the Tsarist regime, twenty three on the Bolsheviks, the Provisional Government or Lenin. Not one Question 13 in seven years asked about the succession struggle, the Purges, the Terror, the cult of personality or Stalin's control.

Question 14 is where Stalin lives, but Question 14 is not reserved for him. On three papers, Question 14 was itself set on Key Question 2 and there was no Stalin question anywhere in the Depth Study: June 2018 variant 1, where Question 14 asked about the Provisional Government's critics, Lenin in hiding and the Civil War; June 2023 variant 3, on Brest-Litovsk, Kornilov and War Communism against the New Economic Policy; and March 2023, on the Bolshevik decrees, Brest-Litovsk and the New Economic Policy. On a fourth, June 2018 variant 2, Question 14 was headed "Stalin took action to remain in power" and then opened with "What was the New Economic Policy?", which is Key Question 2 content sitting under a Stalin heading.

Two working rules follow, and they point in opposite directions, which is the honest position:

1. Q13 has never once been a Stalin question in forty eight papers
2. so if you have revised only this Key Question you can expect nothing from Q13
3. but Q14 has three times been a Bolshevik question instead
4. so on roughly one paper in sixteen there is no question on this Key Question at all
5. which means Key Question 2 is not optional cover for you, it is insurance.

Do not turn the first half of that into a prediction. The pattern is a description of what has happened, not a promise printed anywhere by Cambridge, and the marking page's warning that the slot pattern broke in several 2024 papers applies to every Depth Study.

How often this Key Question is actually set

Counted by question part, across the forty eight Paper 1 papers, this Key Question supplied sixty three of the one hundred and forty four Section B Depth Study C parts, which is a little under half. Twenty three papers carried at least one part on it. On seventeen papers, all three parts of Question 14 came from it, so the whole Depth Study question was a Stalin politics question.

The boundary calls behind those numbers are this page's, not Cambridge's. Cambridge does not label its questions by Key Question, and a handful of parts genuinely straddle: a question on Russification, for instance, or on the lives of young people, could be filed here as control or under Key Question 4 as social impact. The count is offered as a shape, not as arithmetic to be trusted to the last unit.

Gaining or holding: the papers prefer holding

Of those sixty three parts, roughly twenty four were on gaining power, meaning the succession, Lenin's Testament, the funeral, the two rival ideas and Trotsky's fate, and roughly thirty nine were on holding it.

The split is sharper where it matters most, on the 10-mark part (c), which is worth more than parts (a) and (b) combined:

And within the holding group, one question comes round again and again in barely altered words. Cambridge has set, in these five papers, essentially the same 10-mark argument:

• "It was the Purges that gave Stalin control of the USSR." (June 2022, variant 3)
• "The use of terror was the most important factor in giving Stalin control over the Soviet Union." (November 2023, variant 3)
• "Stalin stayed in power because of the use of the Purges." (June 2024, variant 1)
• "Stalin stayed in power because of the use of terror." (June 2024, variant 3)
• "Stalin was able to stay in power because of the Purges." (November 2024, variant 2)

In every one of the five, the mark scheme's other side is propaganda and the cult of personality. If you prepare one balanced argument for this Key Question, prepare that one. Section 5 builds it.

Cambridge also rotates which method it names in the statement, so the same argument arrives dressed differently: "the most successful method used by Stalin to control the Soviet people was art and culture" in June 2018, "Stalin controlled the USSR through the use of show trials" in June 2023, "Stalin's personality cult was his most effective means of control" in November 2020, "the show trials were the most effective method of control used by Stalin" in November 2019. All four are the same essay with the named method moved to the other side.

Why the examiner reports cannot help you here

Question 13 upward routinely draws the line "There were too few responses to this question for meaningful comments to be made", and Depth Study C collects it repeatedly, including in the November 2019, November 2020 and November 2023 reports.

Reports did comment on Depth Study C questions in a few series, and where the question was on this Key Question the comment is short. The June 2018 report notes that some candidates struggled with the word "plausible" in "Why was Stalin the most plausible candidate to become leader following the death of Lenin?", and that the best-explained reason was that Stalin's ideas seemed more realistic than Trotsky's. The November 2018 report notes that most responses on the usefulness of the show trials reached at least two relevant points but that the identifications on art and culture "needed to be developed" into explanations.

That is close to everything. So the fault list in section 9 is built from a different source: what the mark schemes reward and what they refuse. That evidence is complete, because it exists for every question ever set.

3. Focus point 1: why Stalin, and not Trotsky, emerged as Lenin's successor

Cambridge frames this focus point as a surprise, and one Paper 1 question part asks the surprise directly: "Why did it surprise many people when Stalin emerged as the new leader of the Soviet Union?" So start from why Trotsky was expected to win.

Why Trotsky was the obvious candidate

The mark schemes credit all of the following as reasons Trotsky was the leading candidate: he was the most prominent Bolshevik after Lenin; he had organised the October Revolution and its military planning; he had led the Red Army to victory in the Civil War; he was a brilliant speaker and political thinker; he was popular with the Red Army; and Lenin himself, in the Political Testament, called him the most capable man in the Central Committee.

Against that, Cambridge describes Stalin at the same moment as "regarded as rather mediocre with no special talents" and holding "a relatively minor position in the Party".

The post Stalin already held

The single most credited fact in this whole focus point is Stalin's job. He was General Secretary of the Communist Party, and Cambridge's mark schemes return to it in almost every series: it let him put his own supporters into posts throughout the Party, remove people likely to support his opponents, and pack Congress with his own people. One mark scheme describes him taking on "boring jobs like the General Secretary" while Trotsky did nothing comparable.

A warning on the name. Cambridge spells this post three ways across its own documents: General Secretary in twenty of the mark schemes read, Secretary-General in four, and Secretary General in one. All three are Cambridge's own. Use whichever you like; no examiner can penalise a spelling their own mark scheme uses.

Lenin's Political Testament

Cambridge treats the Testament as the thing that should have ended Stalin's chances and did not. The mark schemes describe it as the will Lenin dictated before he died, and print its contents in this form: Stalin had become too powerful; Lenin was not sure Stalin would use his authority wisely; Lenin said Stalin was "too rude"; Lenin said Stalin should be removed from his post as General Secretary; Trotsky was a man of outstanding ability and the most capable man in the Central Committee; but Trotsky displayed excessive self-assurance and focused too much on administration.

The reason it did no damage is the reason Cambridge credits most often: it was not published. And the mark schemes give the mechanism, which is the part that turns an identification into an explanation. Lenin had criticised other leaders in it too, including Zinoviev and Kamenev, so those leaders had their own reasons to keep it quiet; and Trotsky's opponents feared that publishing it would help Trotsky. So the document that named Stalin as the danger was suppressed by men who were not Stalin.

1. Lenin's Testament says Stalin should be removed
2. but it criticises Zinoviev and Kamenev too
3. and they calculate that publishing it would strengthen Trotsky more than it would weaken Stalin
4. so the Central Committee is urged not to publish and Trotsky stays silent about publication
5. the one document that could have blocked Stalin is buried by his rivals in their own interest.

Lenin's funeral

Cambridge sets this as a question in its own right, "Why was Lenin's funeral important in the power struggle?", and the answer is consistent across every series. Stalin gave Trotsky the wrong date. Trotsky did not attend. Stalin appeared as chief mourner, presented himself as Lenin's closest comrade and natural successor, and looked as though he had been closest to the dead leader while Trotsky looked uncaring.

One Paper 4 mark scheme adds a detail that changes the moral of the story and is worth having: it lists under "luck" that Trotsky was recovering from a malaria-like illness at the time of the funeral. Cambridge therefore offers the funeral as evidence for both sides of "ability or good fortune", which is exactly what a 10-mark answer needs.

The two ideas

This is the policy half, and Cambridge sets it as a 4-mark question on its own: "What did Stalin mean by 'Socialism in one country'?" and "What was Trotsky's idea of Permanent Revolution?"

Socialism in one country, in Cambridge's words: Russia should focus on its own revolution and become a model communist country; the Soviet Union should strengthen itself internally; the revolution in Russia should be secured before trying to spread world revolution, especially because attempted revolutions elsewhere in Europe had failed. Cambridge notes that Party members found this patriotic, because Russia would build itself up without outside help.

Permanent Revolution, in Cambridge's words: the theory was based on the idea of a world economy; national economic development was shaped by the world market; to succeed, the Russian Revolution would have to encourage revolutions in other countries, particularly in western Europe; and the theory emphasised the working class as most important because of its position in industry.

Why Stalin's idea won, as the mark schemes put it: Party leaders were worried by Trotsky's radicalism, because helping communist groups abroad obliged the USSR to act and could involve it in new international conflicts. Stalin's programme asked for nothing that could go wrong outside Russia's borders.

Trotsky's own contribution to his defeat

Cambridge credits a long list, and it is the "other side" of most 10-mark questions on this focus point: Trotsky was arrogant; he offended senior Party members and did not care that he did; he underestimated Stalin; he assumed he would simply become leader and made no effort to build support; his control of the Red Army worried people who feared he might become a dictator; he had been a Menshevik before he was a Bolshevik and some never forgave it; and one Paper 4 mark scheme lists antisemitism among the reasons he lost.

The sequence, which is what part (a) rewards

Cambridge's Paper 4 mark scheme for "Write an account of Stalin's rise to power by 1929" prints the manoeuvres in order, and this is the most compact account of the succession in any Cambridge document read:

• Stalin told Trotsky the wrong date for Lenin's funeral and became chief mourner.
• Stalin persuaded communist leaders not to make Lenin's Testament public.
• Stalin sided with the right against Trotsky at the First Party Congress in 1924.
• In 1925 he sided with Bukharin against Zinoviev and Kamenev, and packed his supporters into Congress using his position as General Secretary.
• Trotsky and other leaders were expelled from the Party in 1927.
• He developed his own ideology of Socialism in one country.

Note the shape: Stalin never fought both wings at once. He allied with the right to destroy the left, then turned on the right. Trotsky, Zinoviev, Kamenev and Bukharin were all expelled in turn, and Stalin filled their positions with his own supporters.

What happened to Trotsky afterwards

Set as a 4-mark question in November 2023, and the mark scheme prints the dates:

• Removed from his position as Commissar for War.
• Banned from the Communist Party in 1927.
• Deported in 1928 to a remote part of Soviet Central Asia.
• Banished from the USSR permanently in 1929.
• His former supporters and allies put on trial while he was in exile.
• Propaganda published inside the Soviet Union showing him as evil and in league with foreign enemies.
• Followed on Stalin's orders and murdered in 1940.

Trotsky's murder in 1940 is inside the syllabus period, and it is the bridge between this focus point and the next: the Purges of the 1930s were repeatedly justified as the removal of Trotsky's agents, years after Trotsky himself had been driven out of the country.

Beware the date Cambridge cannot keep straight

The syllabus says "Reasons for Stalin's emergence as leader by 1928". The papers say all of the following: "by 1928" (March 2021, and two Paper 4 questions), "by 1929" (June 2019 variant 3, and the Paper 4 title "Stalin's rise to power by 1929"), "in the mid-1920s" (June 2022 variant 1), "After 1929 Stalin dominated the USSR" (June 2023 variant 2) and "From 1929 Stalin dominated the USSR" (March 2019).

Do not try to reconcile these. There is no single moment at which Stalin "became" leader, which is precisely why Cambridge's own writers pick different years. Answer whatever date the question in front of you prints, and stop there.

The judgement Cambridge wants

Six 10-mark questions have been set on this focus point, and the statement is always some version of the same opposition: Stalin's abilities against Trotsky's failings, or ability against luck. The mark schemes' exemplar answers argue both, and the strongest judgement is not a vote for one side but an account of how they fit together.

1. the Testament and the illness and the mistiming of the funeral are all things that happened to Stalin rather than things he did
2. but the suppression of the Testament, the chief mourner's place, the alliance with the right and then against it, and the packing of Congress are all things he did
3. so what luck supplied was the opportunity and what ability supplied was the use of it
4. and Trotsky received the same opportunities and used none of them, which is the fact that decides the question.

4. Focus point 2: why Stalin launched the Purges

What "the Purges" names, and what to call them

Cambridge uses several names for overlapping things and does not define them against each other. In its own documents you will find the Purges, the Great Purge, the Great Purges, the Great Terror, the chistka, and the show trials. One mark scheme glosses chistka as "cleansing" and applies it to the purge of the Old Bolsheviks and of the Party. One question stem dates "the 'Great Terror'" to 1936 to 1938. Another mark scheme dates "the chistka" to 1932 to 1935. A third says the purges were "launched in 1934 after murder of Kirov".

So Cambridge's own start date for the purges is 1932, 1934 or 1936 depending on the paper. Use whichever the question gives you. A 4-mark answer to "What were the Purges?" does not need a start date at all: Cambridge's own indicative content for that question is that they were a form of terror, that thousands of politicians were removed from the Party and executed, that supporters of Trotsky were removed, that show trials were part of them, that anti-Soviet elements including writers and artists were purged by Yezhov, that people were scared to criticise Stalin, that the Purges kept Stalin in power, and that they left the army without its most capable leaders.

The murder of Kirov, 1934

Cambridge sets this as a 6-mark question and gives it a consistent role: it was the trigger, or rather the excuse.

The mark scheme for "Why was the murder of Kirov in 1934 important?" describes Sergei Kirov as the young and popular boss of the Leningrad section of the Party and a Politburo member, states that Stalin believed his opponents were planning to replace him with Kirov, and then says plainly that Stalin "secretly ordered the NKVD to have Kirov murdered" and used the killing as an excuse to turn on Zinoviev and Kamenev, whom he blamed for it. Zinoviev and Kamenev were convicted of Kirov's murder. Show trials of Old Bolsheviks followed, and then the purging of the military and of industrial leaders.

Cambridge does not say this consistently. Other mark schemes describe the same event without attributing it to Stalin at all, writing only that the purges were launched after the murder of Kirov, and one Paper 4 mark scheme lists Kirov under "Stalin's removal of political rivals", which is a third position again. Stalin's responsibility for the Kirov murder is contested by historians and Cambridge's documents do not agree about it. In an answer, the safe and fully creditable form is the one Cambridge uses most often: Stalin used Kirov's murder as the excuse to launch the purges. If you want to go further, attribute it: say that Cambridge's own mark scheme states Stalin ordered it, rather than asserting it flatly yourself.

The reasons Cambridge credits

Set as a 6-mark question at least three times, in these words: "Why were the purges important to Stalin?", "Why did Stalin introduce the Great Purges in the mid-1930s?", "Why was the 'Great Terror' of 1936 to 1938 important to Stalin?" The credited reasons, gathered from all of them:

• To remove rivals inside the Communist Party. Stalin was worried about Old Bolsheviks who had been important before him, who remembered the Revolution, and who were still powerful. Bukharin and Kirov are named as examples of men who were potential threats because they were popular.
• To silence criticism of collectivisation. The mark schemes are explicit: some Party members were shocked by the deaths and misery caused by collectivisation and thought it was no part of the original Bolshevik plan; others wanted to slow industrialisation and improve relations with the peasants. Purging them protected the economic policy, which is one of the two places where this Key Question and Key Question 4 genuinely touch.
• To create a Party with no memory of the Revolution. Cambridge phrases this as wanting "a Party of people who had no memory of the Revolution and knew only about Stalin". A Party whose members owe their careers to Stalin cannot appeal over his head to anyone.
• To keep the army loyal. Stalin purged it so that it could not move against him.
• To blame others for economic failures. Show trials gave the state a public explanation for shortfalls that was not the plan.
• To supply forced labour. One mark scheme lists this outright: to provide slave labour for projects like gold-mining and canal-building.
• Fear itself. Cambridge repeatedly uses the word paranoia, in its own voice: "Stalin was paranoid and saw enemies and rivals everywhere", and "there was little point to the Purges except Stalin's paranoia and his need to protect his own power".

The show trials

Set as a 4-mark question twice. The credited content: leading communists were made to confess in public to being traitors to the state; they confessed because they had been tortured or their families had been threatened; the charges were that they had conspired with western powers to overthrow Stalin, break up the Soviet Union and restore capitalism; the defendants were sentenced to death or sent to labour camps; the trials were filmed and shown in cinemas as propaganda. Named defendants in Cambridge's own lists: Kamenev, Zinoviev, Bukharin and Rykov.

The mechanism, which is what turns this into an explanation, is that a show trial does two jobs at once. It removes the man, and it tells everyone else that the man was guilty, so that removing him looks like defence rather than aggression.

1. a rival is arrested and tortured until he confesses
2. the confession is staged in public and filmed
3. the population is shown that conspiracies against Stalin are real
4. so the next arrest looks like proof of the same conspiracy rather than proof of Stalin's fear
5. and the terror justifies itself without Stalin having to argue for it.

The army

Cambridge treats the purge of the Red Army as the clearest case of damage done, and it is the standard "disaster" side of the question "Were the Purges a disaster for Stalin and the Soviet Union?"

The credited points: senior officers and generals were arrested, imprisoned and executed; the Supreme Commander of the Armed Forces was among them; Marshal Tukhachevsky is the officer Cambridge names; the army lost its most experienced officers; the officers who remained were unable to think for themselves because of the reign of terror; and this became a severe problem when Germany invaded in 1941.

Two cautions. Cambridge spells the marshal's name Tukhachevsky in the Paper 4 mark schemes and Tukachevsky in one Paper 1 mark scheme. Both are Cambridge's. And the number of officers removed is given as 25,000 in four documents and 37,000 in two others, with a separate claim that 90 per cent of generals were removed from their positions and another that three of five marshals were purged. Section 7 collects these.

The NKVD purged itself

A detail Cambridge credits and most candidates miss: the secret police were purged too. Yagoda, once head of the NKVD, was arrested and executed in 1938. Yezhov is named as the man who purged anti-Soviet elements including writers and artists. The mark scheme uses this to make the point that "no one was safe from the NKVD" and that even the NKVD was not safe from the NKVD.

Why the Great Purge ended in 1938

Set once, as a 6-mark question in March 2019. Cambridge's credited answers: it had developed a life of its own and was pulling Soviet society apart; even the NKVD was now being purged; the effect on the armed forces was disastrous, with most of the top generals lost; it was damaging the economy, with managers and engineers missing; and it had already given Stalin total control, so he no longer needed it.

The judgement Cambridge wants

The commonest 10-mark form is "How far do you agree that Stalin's main target in the purges was those who had supported Trotsky?", set in November 2021 and November 2023, and the companion form "The main target of the purges was opposition within the Communist Party", set in November 2020.

Cambridge's own answer, in the exemplars, is that the stated target was always too narrow to explain the scale.

1. the purges begin as an attack on Trotsky's supporters and the Old Bolsheviks, with Zinoviev accused of being Trotsky's agent
2. but they then take in the Red Army, the NKVD itself, Party officials, kulaks, NEPmen, writers, scientists, engineers and ordinary workers
3. and Trotsky had already been out of the country for years
4. so the stated target explains the first arrests and none of the rest
5. what explains the rest is that anyone in a position to threaten Stalin was removed for what they might do rather than for anything they had done.

5. Focus point 3: what methods Stalin used to control the Soviet Union

This is the largest focus point and the one Cambridge sets most often. Treat it as a list of methods that must each be explainable in three sentences, and as one recurring argument between two of them.

Terror: the NKVD

The NKVD were the secret police, and Cambridge sets a 4-mark question on their role and a 6-mark question on why they were feared. Credited content: they arrested opponents and suspected opponents; they arrested people at night and imprisoned and tortured them without charge; they used informers; they investigated politicians and army generals; they provided the evidence for the Great Terror; they murdered Kirov; they murdered Trotsky; they drew up lists to purge society of anti-communist and counter-revolutionary elements including writers, scientists, poets and artists; they set targets for arrests; and they were purged themselves. One Paper 4 mark scheme says they held "powers of police, jury and judge".

The reason Cambridge gives for the fear is not the cruelty but the reach: "no one was safe from them or beyond their reach". Former Bolsheviks were rounded up by them, and so was the man who had run them.

Terror: the gulags

Set as a 4-mark question ("What were the 'gulags'?", "Describe life in the gulags") and as a Paper 4 account. Credited content: they were labour camps or prison camps; they were set up by Lenin and used a great deal by Stalin, first run in the 1920s by the Cheka to imprison anti-Bolshevik opponents; many were in Siberia and conditions were harsh; prisoners did hard labour on limited rations; many died; criminals, political opponents, kulaks and NEPmen were sent there; and prisoners built public works, with the Baltic to White Sea canal and the Moscow Metro both named in Cambridge's own indicative content.

The origin point is worth keeping, because it is a strong Level 5 nuance: the camp system is not Stalin's invention. What Stalin did was expand it enormously in the 1930s alongside the Purges.

On the numbers, read section 7 before you write any of them down. Cambridge prints incompatible figures for how many people passed through the camps and how many died there, and this is exactly the place where a plausible-sounding invented number would be seriously wrong.

The cult of personality

Set as a 4-mark question three times and as the other side of almost every 10-mark question on this focus point.

What Cambridge credits as the visible signs: portraits of Stalin in people's homes; statues in public places; large pictures in public places; regular public processions praising him; towns, cities and streets named after him, with one mark scheme giving sixteen cities; films showing him as a great hero; his birthday celebrated by the nation every year, with the celebrations becoming more dramatic each year; photographs doctored to make him the hero of the Revolution and to remove purged people from the record; history rewritten so that he, not Trotsky, stood beside Lenin; music and poems written to praise him; and children taught that he was "the wisest man of the age".

What Cambridge credits as its function, which is the part that earns marks: it made Stalin the embodiment of everything good about the Soviet system, so that the country's achievements were personally his; it made him appear god-like and put him beyond criticism; it presented him as Lenin's legitimate successor; and it made opposition to Stalin feel like opposition to the country.

Propaganda, censorship, art and culture

Set as a 4-mark and as a 6-mark question several times. Credited content: a huge propaganda campaign in the cinema and on the radio; propaganda trains spreading communist films across Russia; writers censored and no critical books allowed; writers belonging to a union with the Party controlling what could be published; books removed from libraries; the press controlled so that only articles praising Stalin appeared; artists required to produce work glorifying the Revolution; Socialist Realism as the required style, showing workers set free by communism and giving a positive account of Soviet life; counter-revolutionary authors, musicians and artists banned and persecuted; artists watched by the NKVD; and critics sent to labour camps.

Cambridge spells the doctrine Socialist Realism in most places and social realism in one. Either is safe.

The reason Cambridge credits for controlling culture is that it kept alternative ideas out of circulation entirely: if the only messages available are positive, there is no vocabulary in which to be discontented.

Education and the youth movements

Credited content: education strictly controlled with strict discipline; the government controlling what was taught; history rewritten for the classroom with people such as Trotsky disappearing from textbooks; the school curriculum teaching Stalin worship, the cult of Lenin, and Marxism-Leninism; universal primary education introduced in 1930; and enormous growth in secondary education.

The youth organisations Cambridge names are the Octobrists, the Pioneers or Young Pioneers, and the Komsomol. Credited detail on the Young Pioneers: set up in 1922; replacing the scout movements; membership compulsory; children indoctrinated into communist ideas; uniforms, banners and songs; brigades; camps for sport or for interests such as geology, funded by the government and the trade unions; members taught to love Russia; and two million members by the mid-1920s.

Two conflicts, both Cambridge's own. One mark scheme gives the Young Pioneers' age range as nine to fourteen and another as nine to fifteen. One says membership was compulsory, which sits awkwardly beside the same document's description of camps and interests. Neither has to be resolved to earn the mark, because a 4-mark answer needs four separate points and the age range is only one of them.

Cambridge also credits the damage: the arrest of parents as enemies of the people left children traumatised and socially marked, and many children of arrested parents ended up homeless or in state orphanages.

Religion

Credited on Paper 4: Stalin promoted atheism through schools and the Young Pioneers; discriminatory laws and repression were used against Orthodox Christians, Muslims and other religious groups; monks and nuns were persecuted; churches were pulled down, and by 1939 there were fewer than 500 churches left in Russia; purges were carried out against the Orthodox Church; thousands of Islamic schools, hospitals and mosques were forced to close.

Cambridge supplies the counter-argument itself, and it is a gift for a Level 5 judgement: the 1937 census showed that 60 per cent of Russians still described themselves as Christian. That is Cambridge's own evidence that the most total-seeming method of control did not work.

Russification and the national minorities

This is the item that sits on the boundary with Key Question 4, because the syllabus files "ethnic minorities and women" under "Life in the Soviet Union". Treat it as yours when it is about control and as Key Question 4's when it is about experience.

Credited content: Stalin discouraged separate national identities and encouraged minority groups to see themselves as Soviet citizens; Russian was made a compulsory school subject and the official language of state organisations including the army; those who could not speak Russian were discriminated against and found it hard to get work; Russians were encouraged to migrate into non-Russian areas; minority groups such as the Latvians were purged; and one mark scheme states that 1.5 million ethnic minorities were deported back to Asia.

Note that Russification is also a Tsarist policy in this Depth Study, set at Question 13 and on Paper 4 as an aspect of Tsarist rule up to 1914. If a question says Russification without a date, read the rest of the stem before deciding whose Russification it means.

The 1936 Constitution

Set as a 6-mark question in November 2020. Cambridge's credited reasons: it was produced as propaganda to show foreigners that the Soviet state was democratic and respected workers' rights; to show the USSR was a fair society; to cover up what was happening in the purges; to make Stalin officially the central authority; and to strengthen the position of the Communist Party.

The detail that makes this an explanation rather than a description, printed in a June 2018 exemplar: the Constitution gave freedom of speech and free elections, and this was cosmetic, because only Communist Party candidates could stand and only approved newspapers and magazines could be published.

1. the 1936 Constitution grants rights on paper at the height of the Terror
2. but only Party candidates may stand and only approved publications may print
3. so the rights are real in text and void in practice
4. which means the document is not a limit on Stalin's power but an instrument of it, aimed at foreign opinion and at concealing the purges.

Where the economic policies belong

Collectivisation and the Five-Year Plans are Key Question 4's. They enter this page only as instruments of control, and Cambridge's own mark schemes tell you exactly what that looks like:

• Collectivisation brought the countryside under state control and removed the kulaks, whom Stalin treated as a class likely to oppose him. Cambridge's own Level 3 exemplar for the political side reads that collectivisation was the socialist way of farming, that peasants had to live and work together and learn to share, and that it involved an attack on the kulaks, "the rich peasants, who went against socialist beliefs and were seen as the enemies of the people".
• The Five-Year Plans increased Stalin's power and prestige, let the state spread propaganda in factories, and gave it control over workers through targets, rewards and punishments, with non-compliant workers accused of sabotage.
• Gulag prisoners were used as slave labour on Five-Year Plan projects, which is the point at which the terror and the economy become the same policy.

Cambridge has twice put this boundary in a question stem, in March 2022, "Stalin changed Soviet agriculture for political rather than economic reasons", and in November 2024, "Stalin introduced the Five-Year Plans for political rather than economic reasons". Both are on the syllabus's Key Question 4 content and both require Key Question 3 argument, which is the clearest proof that the two pages must be revised together.

Cambridge's own Level 5 sentence for the November 2024 version is worth memorising, because it is the judgement the examiner wrote: "Economic and political motives were interwoven." The mark scheme continues that economic motives existed but were all subject to political motives as well.

So the rule for this page is not that the economic policies are forbidden. It is that on this page you may use them only to answer a question about power. If the question asks whether collectivisation raised output or whether the plans improved living standards, you are on Key Question 4's page and nothing here will help you.

The judgement Cambridge wants: terror or propaganda

This is the argument the papers set more than any other. Cambridge's exemplars for both sides, compressed:

Terror. Stalin used purges to remove rivals and to frighten people into obeying. Show trials made it public. He shot or imprisoned leading figures in the army, the navy, the secret police and the Party. He also purged ordinary people, factory managers and workers. Neighbours and colleagues denounced each other to prove their own loyalty. Everyone was too scared to step out of line, and people knew their lives and careers depended on saying exactly what Stalin wanted.

Propaganda. Terror cannot last for ever and cannot be applied to everyone, so Stalin needed people to respect and even love him. History was rewritten to make him the hero of the Revolution. Posters, statues and photographs flooded the country. Music and poems praised him. Towns held regular processions. Mothers told their children he was the wisest man of the age. People were bombarded with this everywhere they went and many ended up believing that to oppose Stalin was to oppose the country.

Cambridge's own top-band exemplars come down on both sides in different papers, which means the examiner is not looking for a particular answer. In June 2024 variant 1 the Level 5 exemplar concludes that propaganda was the main method, on the ground that ruling by fear cannot last for ever and that Stalin could not afford to kill all his generals. In June 2024 variant 3 the Level 5 exemplar concludes that terror was the main method, on the ground that ordinary people were not in a position to threaten Stalin whereas men like Bukharin and Radek and the heads of the army and secret police were.

That contrast is the best judgement available on this Key Question, because it explains why both answers are right:

1. terror and propaganda were not competing methods but methods aimed at different people
2. terror removed the small number of men who were actually able to replace Stalin
3. propaganda handled the millions who never could
4. so asking which was more important is really asking which threat mattered, and the answer is that Stalin faced both and used the method that fitted each.

6. Focus point 4: how complete Stalin's control was by 1941

Cambridge sets this focus point less often than the other three, and almost always in the form "Stalin was more loved than feared in the USSR up to 1941" or as the closing judgement of a question about methods. It is also the focus point that supplies the "how far" in every "how far do you agree" on this Key Question, so it is worth preparing even though it is rarely the whole question.

The case that control was near total

Cambridge's own material: opposition inside the Party had been physically removed; the army's leadership had been destroyed; the secret police had been purged and reconstituted under Stalin's hand; the Party Congress and Central Committee, in Cambridge's phrase, "rubber-stamped decisions by Stalin"; power had been centralised in the office of General Secretary, who was "now de facto dictator"; the press, publishing, art, music, film and the school curriculum were all controlled; internal passports controlled travel; and the country was, in Cambridge's own words, a "police state and totalitarian society in the USSR where no one challenged his authority".

What Cambridge itself concedes

The examiner has planted the counter-evidence in the mark schemes, and it is where the last two marks live:

• "They did not give him complete control because local officials often ignored instructions."
• "People's private lives were not always controlled by Stalin."
• The 1937 census showed 60 per cent of Russians still calling themselves Christian, after nearly a decade of official atheism.
• Underground anti-communist cultural movements survived in secret, and young people committed low-level acts of defiance such as graffiti and damage to official buildings.
• Propaganda was "not totally effective with many citizens especially those in more remote areas".

Loved as well as feared

Cambridge's exemplar for the "more loved than feared" question argues genuine support and does not treat it as naive. Many workers looked up to Stalin because the USSR had a strong industrial base by the end of the 1930s and because education had opened to men and women. Many industrial projects depended on volunteers who worked willingly in harsh conditions, and Cambridge's own comment is that "these people must have believed in what Stalin wanted to achieve". The other side of the same exemplar is that millions of kulaks were deported or killed for opposing collectivisation, that the NKVD arrested people seemingly at random, and that everyone lived in fear of being denounced by a neighbour or a colleague.

Both are true at once, and saying so is not fence-sitting if you give the reason:

1. the same regime produced volunteers who built factories for nothing and neighbours who denounced each other to survive
2. because the propaganda reached everyone and the terror reached anyone
3. so a citizen could believe in the project and fear the state at the same time without contradiction
4. control was complete over what could be said in public and much less complete over what was believed in private, and it is the first that a dictatorship needs.

7. The numbers Cambridge prints, and the places it prints two of them

Cambridge's mark schemes print figures for the Terror. They do not agree with each other, sometimes within the same series. The table below records what each document actually says.

Do not average these, do not pick the largest, and do not supply a figure of your own. The death tolls of this period are genuinely contested, and a plausible-looking invented number here would be both wrong and conspicuous. Use whichever figure appears in the mark scheme culture you are working from, attribute it if you can, and never assert a number Cambridge has not printed.

Look at the NKVD row in particular. The same figure, 1.5 million, appears in four documents meaning four different things: people arrested, people shot, total victims of whom half a million were shot, and total victims of whom 600,000 were shot. That is not a rounding difference; it is the same number attached to different events. If you use it, say which claim you are making.

Two smaller conflicts of fact, both Cambridge's own, are worth knowing so that you are not thrown when a textbook disagrees with a mark scheme:

• The name of Stalin's post. General Secretary, Secretary-General and Secretary General all appear.
• The marshal's name. Tukhachevsky and Tukachevsky both appear.
• The Young Pioneers' age range. Nine to fourteen, and nine to fifteen.
• When the purges began. 1932, 1934 or 1936, depending on the paper.
• When Stalin became leader. 1928, 1929, or the mid-1920s.

The other calendar trap

Russian dates in this period run on two calendars, and Cambridge writes both without ever explaining the difference. The Bolshevik seizure of power appears in Cambridge's own question stems as "the October Revolution", as "the November Revolution of 1917", and as "7 to 8 November 1917" and "6 to 8 November 1917" on different papers. The syllabus itself uses "The March Revolution of 1917" for the fall of the Tsar, which other traditions call February.

That trap belongs mostly to Key Questions 1 and 2, but it reaches this page whenever a question dates the succession or the Party congresses. The rule is the same as everywhere else on this page: use whatever Cambridge prints in the question in front of you, and do not correct it.

8. Where else this Key Question is examined

Paper 4, the Alternative to Coursework

If your school enters you for Paper 4 rather than the coursework component, your Depth Study is examined there too. Depth Study C is Questions 5 and 6 on Paper 4, in every paper read from 2018 to 2024. Paper 4 changed format for 2024: one 40-mark essay became (a) 15 marks, "Write an account of", plus (b) 25 marks, "Discuss the importance of" or "Discuss the impact of".

Two things about Paper 4 differ from Paper 1 and are worth knowing.

Paper 4 does not respect the Question 13 pattern. On Paper 1, this Key Question has never appeared at the first of the two Depth Study slots. On Paper 4 it appears at both. June 2019 variant 2 set "How important was Trotsky in Stalin's emergence as leader by 1928?" at Question 5, the slot Paper 1 reserves for the Tsar and the Bolsheviks.

Paper 4 sets the economic policies as control questions much more openly. Two of its titles are "How significant were the Five-Year Plans in maintaining Stalin's dictatorship?" and "How significant were the Five-Year Plans in helping Stalin increase his control of the Soviet Union?" Both are Key Question 4 content examined as Key Question 3.

Titles set on this Key Question, 2018 to 2024, in Cambridge's own words:

• How significant were Stalin's ideas about Communism in the Soviet Union as a reason for his emergence as leader?
• How significant were the Five-Year Plans in maintaining Stalin's dictatorship?
• How significant was the removal of political rivals in allowing Stalin to create a totalitarian state?
• How significant were splits amongst the leadership of the Communist Party in allowing Stalin to gain control of Russia?
• How important was Trotsky in Stalin's emergence as leader by 1928?
• How significant was control of the media in maintaining Stalin's dictatorship?
• How significant was the New Economic Policy in allowing Stalin to gain control of the USSR by 1928?
• How significant were the Five-Year Plans in helping Stalin increase his control of the Soviet Union?
• How significant were Stalin's Purges in the creation of a totalitarian state in the Soviet Union after 1928?
• How significant were factions in the Communist Party as a reason for Stalin's purges in the 1930s?
• How significant were gulags to Stalin's system of control in the Soviet Union after 1928?
• How significant was Stalin's control of religion and culture in creating a totalitarian state in the Soviet Union after 1928?
• How significant was Stalin's 'Cult of Personality' as an aspect of the Communist dictatorship after 1928?
• How significant was political opposition as a reason why Stalin launched the purges in the 1930s?
• How significant was propaganda in shaping the lives of Soviet citizens in the 1930s?
• Write an account of Stalin's rise to power by 1929. Discuss the importance of Lenin's death.
• Write an account of the Purges. Discuss the importance of Stalin's 'cult of personality'.
• Write an account of the gulag system in Stalin's Russia. Discuss the importance of the NKVD in the Soviet Union.

Notice the word "totalitarian". It appears in four Paper 4 titles and in none of the Paper 1 stems. If you are entered for Paper 4, learn to use it: Cambridge's mark schemes define it in practice as one-party rule with no independent institution left, a rubber-stamp Congress, a controlled press, a police force answerable only to the leader, and no legal way to disagree.

Paper 2

Paper 2 never examines a Depth Study. Its prescribed topic is always taken from Core Content, so the source skills you learn for Paper 2 and everything on this page never meet.

9. The mistakes this Key Question invites

The examiner reports on Depth Study C mostly say that too few candidates answered for meaningful comments to be made, so this list is built from what the mark schemes reward and, more usefully, what they refuse. Everything below is a fault the level ladders will actually cost you marks for.

• Writing the story of the Purges when asked why they happened. The commonest single trap on this Key Question. A narrative of arrests, trials and executions is Level 2 on part (b), however accurate, because "why" wants a reason with a mechanism attached. The mark scheme's Level 1 example for one purges question is "He did this to make himself strong", which is the same fault in miniature.
• Using "Stalin was paranoid" as the whole answer. Cambridge does credit paranoia, in its own voice. But paranoia alone is a description of a man, not an explanation of a policy. Attach it to something: he was paranoid about the Old Bolsheviks who remembered the Revolution, and therefore removed the people who could remember a time before him.
• Answering the gaining question when asked the holding question. The Key Question has two halves and candidates who have revised the leadership struggle write it whatever the question says. "Stalin stayed in power because of the use of the Purges" is not about Trotsky. A paragraph on Lenin's funeral earns nothing in it.
• Answering the holding question when asked the gaining question. The same fault reversed, and it is easier to fall into, because the Purges are the memorable material. "Are you surprised that Stalin, not Trotsky, emerged as leader by 1928?" is marked to 1928, and the Great Terror is four years too late to count.
• Drifting into Key Question 4. Writing about grain output, tractor numbers, steel targets or living standards in an answer about power. Cambridge will credit collectivisation and the plans only where they are shown working as control. If your paragraph would be equally at home in an essay about the economy, it is not answering this question.
• Drifting into Key Question 2. Writing about the Civil War, War Communism, the Kronstadt Rising or Lenin's decrees. Those belong to the neighbouring page, and Cambridge has itself set them at Question 14 under a Stalin heading at least once, which shows how easily the two run together in candidates' minds.
• Ignoring the date limit. "Up to 1941" means up to 1941. The German invasion, the Great Patriotic War and Stalin's post-war years earn nothing, and they are exactly the material a candidate who has read ahead wants to use.
• Treating the show trials and the Purges as the same thing. The show trials were a part of the Purges and a small part by number. A question about the show trials is about public confessions filmed for propaganda. A question about the Purges takes in the army, the NKVD, the kulaks, the writers and the millions who never saw a courtroom.
• Asserting a death toll. Read section 7. Cambridge prints figures that differ by an order of magnitude, and none of them is safe to state as fact without attribution.
• Asserting that Stalin ordered Kirov's murder as though it were settled. One Cambridge mark scheme says it. Others do not. Say that Stalin used the murder as his excuse, which every Cambridge document supports.
• Writing one side of a 10-mark question. The universal fault named on the marking page, and this Key Question invites it because the terror material is more vivid than the propaganda material. One explanation on each side is 7. Three brilliant paragraphs on terror alone are capped at 6.
• Ending without a judgement. On the terror-against-propaganda question there is no correct answer and Cambridge's own exemplars go both ways. That is precisely why the tenth mark is available to anyone willing to write one sentence saying which and why.

10. Quick revision

• The Key Question has two halves. Gaining power to 1928 or 1929, and holding it to 1941. The papers ask about holding about twice as often, and the 10-mark question asks about holding fifteen times out of twenty one.
• Depth Study C is Questions 13 and 14. In forty eight papers, Question 13 has never been a Stalin question. Question 14 has three times not been one either.
• The one argument to prepare: terror against propaganda as the reason Stalin stayed in power. Cambridge has set it five times in almost identical words and its own top-band exemplars come down on both sides.
• Why Stalin won and Trotsky lost, in one line: the General Secretaryship, the suppressed Testament, the wrong funeral date, Socialism in one country against Permanent Revolution, and Trotsky's arrogance and inactivity.
• Lenin's Testament said Stalin should be removed, and it was suppressed by men who were not Stalin, because it criticised them too and because publishing it would have helped Trotsky.
• The purge sequence: the murder of Kirov in 1934 as the excuse, show trials of the Old Bolsheviks, then the Red Army, then the NKVD itself, then the wider population, ending in 1938.
• Named individuals Cambridge credits: Trotsky, Zinoviev, Kamenev, Bukharin, Rykov, Radek, Kirov, Tukhachevsky, Yagoda, Yezhov.
• Methods of control, all six: the NKVD and the gulags; the cult of personality; propaganda, censorship and Socialist Realism; education and the youth movements; religion and Russification; and the 1936 Constitution.
• The 1936 Constitution granted rights and meant nothing, because only Party candidates could stand and only approved publications could print. That is the shape of a Level 4 explanation in two clauses.
• The concessions that earn the tenth mark: local officials ignored instructions, private lives were not always controlled, the 1937 census found 60 per cent of Russians still calling themselves Christian, and propaganda reached remote areas poorly.
• The economic policies are Key Question 4's, and yours only as instruments of control. Cambridge's own Level 5 sentence for the boundary is that economic and political motives were interwoven.
• Never state a death toll as fact. Cambridge's own documents give camp deaths as over a million, as ten million, and as fifty million.

Where these facts come from

Everything substantive above is taken from Cambridge's own documents, and each claim can be checked against a named one.

The Cambridge IGCSE History 0470 syllabus for 2027 and 2028. The Key Question, all four focus points and the full Depth Study C specified content list, from pages 23 and 24. The definitions of key question, focus point and specified content, and the fact that specified content is printed once for the whole Depth Study. The statement that Section B contains two questions on each of the five Depth Studies. The statement in the changes section that "There are no significant changes which affect teaching", which is why past papers from 2018 to 2024 remain usable for this Depth Study.

Paper 1 question papers, March, June and November 2018 to 2024, forty eight papers. The finding that Depth Study C is Questions 13 and 14 in all forty eight. The finding that Question 13 was never set on this Key Question and that Question 14 carried Key Question 2 content on June 2018 variant 1, June 2023 variant 3 and March 2023, and at part (a) on June 2018 variant 2. The counts in section 2, built by reading the printed stem of every Question 13 and Question 14 in all forty eight papers. The five near-identical 10-mark statements about the Purges and terror, and the four questions that rotate the named method.

Paper 1 mark schemes, 2018 to 2024. Everything in sections 3 to 6 that is not attributed to Paper 4 below: the reasons Trotsky was the leading candidate and the reasons he lost; the contents of Lenin's Political Testament and the reasons it was suppressed; the funeral and the wrong date; the definitions of Socialism in one country and Permanent Revolution; Trotsky's removal, ban in 1927, deportation in 1928, banishment in 1929 and murder in 1940; the reasons for the Purges; the Kirov murder of 1934 and Cambridge's statement that Stalin ordered it; the content of the show trials; the purge of the army and of the NKVD; Yagoda's arrest and execution in 1938; the end of the Great Purge in 1938; the role of the NKVD; the description and origin of the gulags and the Baltic to White Sea canal; the visible signs and the function of the cult of personality including the sixteen cities and "the wisest man of the age"; propaganda, censorship, Socialist Realism and the propaganda trains; education, the Octobrists, the Pioneers and the Komsomol, the Young Pioneers' founding in 1922 and their two million members by the mid-1920s, and universal primary education in 1930; Russification and the deportation figure; the 1936 Constitution and the reasons for it; the exemplar arguments for terror and for propaganda quoted or paraphrased in section 5; and the concessions quoted in section 6 about local officials and private lives.

Paper 4 question papers and mark schemes, 2018 to 2024. The finding that Depth Study C is Questions 5 and 6, and the change of format for 2024. The full list of Paper 4 titles in section 8. The sequence of Stalin's rise printed for "Write an account of Stalin's rise to power by 1929", including the First Party Congress of 1924, the 1925 alliance with Bukharin against Zinoviev and Kamenev, and the expulsions of 1927. The malaria-like illness at the time of the funeral, and antisemitism, as Cambridge's own listed factors. The word chistka and its gloss as "cleansing". The naming of Tukhachevsky, Yezhov and Radek. The gulag system's origin under the Cheka in the 1920s, the Moscow Metro, and the camp population figures. The church figures for 1939 and the 1937 census figure of 60 per cent. The internal passports. The description of the Party Congress and Central Committee as rubber-stamping Stalin's decisions, and of the General Secretary as de facto dictator. The two Five-Year Plan titles that examine economic policy as control.

Principal Examiner reports, 2018 to 2024. The observation that Question 13 upward routinely draws "There were too few responses to this question for meaningful comments to be made", found in the November 2019, November 2020 and November 2023 reports among others. The June 2018 comment on candidates struggling with the word "plausible". The November 2018 comment that identifications about art and culture needed to be developed into explanations.

Where Cambridge contradicts itself. Section 7 records seven cases and none is resolved above: the labour camp totals, the camp death tolls, the number of army officers removed, the NKVD figures, the name of Stalin's post, the spelling of Tukhachevsky's name and the Young Pioneers' age range, plus the start date of the purges and the year Stalin became leader. None should be reconciled in an exam answer.

Not verified, and therefore not asserted above. The date of Lenin's death, which none of the mark schemes read prints; Cambridge's own material places the succession struggle from 1924 onward, and that is as far as this page goes. The dates of the individual show trials. The date within 1934 of Kirov's murder. The date within 1936 of the Constitution. The number of people executed as opposed to imprisoned, for which Cambridge prints four incompatible claims. Any death toll for the Terror or the camps stated as a single figure. The size of the NKVD. Any figure for Party membership before or after the chistka other than the proportion removed. The identity of Kirov's killer.

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