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NotesHistoryTopic 6.3
Unit 6 · Paper 2 · Society and economy (750–1400) · Topic 6.3

IB History — Crisis and change (c1300–1400)

Topic 6.3 of IB History covers Crisis and change (c1300–1400), which is part of Unit 6: Paper 2 · Society and economy (750–1400). Students explore key concepts including Demographic pressure, famine and plague, Social and economic impact and revolts, Long-term change and case studies. A strong understanding of crisis and change (c1300–1400) is essential for IB History exams and builds the foundation for connected topics across the syllabus.

Exam technique guidePractice questions

Key concepts in Crisis and change (c1300–1400)

Key Idea: The fourteenth century was one long catastrophe. Europe grew too crowded to feed itself, then the Great Famine (1315–17) and the Black Death (1347–51) killed a huge share of everyone alive. So many died that labour became precious — wages rose, serfdom faded, and angry peasants revolted. In the Islamic world the story was different: the Abbasid Caliphate was already broken before the plague ever arrived, so the same disaster deepened an existing decline.

💀 6.3.1 — Famine and the Black Death

By 1300 Europe held about 75–80 million people — the most it had ever had, tripling since the year 1000. But the best land was taken, so a single bad harvest could tip whole regions into hunger. Historians call this living at the Malthusian limit (too many people for the food).

Then disaster struck twice. From 1315 to 1317 endless rain (part of the Little Ice Age, a long cooling of the climate) ruined three harvests in a row and killed maybe 5–10% of northern Europe. A generation later the Black Death — plague from Central Asia — reached Sicily in 1347 and killed a third to a half of everyone by 1351.

  • c1300 — population peaks (~75–80m); Europe is overpopulated and fragile
  • Great Famine 1315–17 — the Little Ice Age brings rain; harvests fail; millions starve
  • Black Death 1347–51 — plague from Central Asia along trade routes kills a third to a half of Europe
  • Bubonic plague spread by rat-flea bites; pneumonic spread person to person by breath
  • Responses — flagellants (self-whippers begging God's mercy) and murderous pogroms against Jews blamed for poisoning wells

🔥 6.3.2 — Wages, wars and revolt

With a third of workers dead, the balance of power flipped. Suddenly labour was scarce, so peasants could bargain for higher wages and lords had to lower rents to keep anyone at all. This is why serfdom — the system tying unfree peasants to a lord's land — slowly began to break down in Western Europe.

Rulers fought back with law. England's Statute of Labourers (1351) froze wages at pre-plague levels, and a hated flat-rate poll tax squeezed the poor. That anger exploded into the Peasants' Revolt of 1381 under Wat Tyler and the preacher John Ball — echoing the earlier French Jacquerie (1358). Both risings were crushed, yet serfdom still faded.

  • Labour shortage → wages rose, rents fell, serfdom weakened in the West
  • Statute of Labourers (1351) — froze wages, criminalised demanding more (widely resented)
  • Peasants' Revolt (England, 1381) — poll tax trigger; Wat Tyler and John Ball; marched on London; crushed
  • Jacquerie (France, 1358) — sparked by war taxes and noble weakness after the defeat at Poitiers (1356)
  • Long term — the revolts failed but the economic tide won: serfdom faded, wages stayed high

🌍 6.3.3 — Two worlds, opposite outcomes

In Western Europe the crisis was a catalyst for change. The Black Death's labour shortage eroded feudalism (land held in return for service) and manorialism (peasants working a lord's estate), producing a freer, cash-paid peasantry by 1400.

The Islamic world tells the opposite story. The Abbasid Caliphate — once the dazzling centre of the medieval world — had fragmented since the 900s and was destroyed when the Mongols under Hülegü Khan sacked Baghdad in 1258, almost a century before the plague. When the Black Death did hit Cairo and Damascus hard, recovery was slower, so crisis deepened an existing decline while trade power drifted to Italian cities like Venice and Genoa.

  • West — Black Death (1348–49) shortage erodes feudalism; wages rise, serfdom fades, towns and merchants gain
  • Abbasid decline — the Caliphate fragmented from the 900s as provinces and generals broke away
  • Mongol sack of Baghdad (1258) — Hülegü ends the Abbasid line, before the plague (don't mix the timelines)
  • Plague in the East — Cairo and Damascus suffer huge losses, recorded by the historian al-Maqrizi
  • By 1400 — the West revives; the Middle East recovers slowly and economic momentum tilts toward Europe

✍️ Exam-ready answers

IB-style questionExamine[15 marks]

Examine the social and economic consequences of the Black Death in fourteenth-century Europe.

🔒 Model answer plan

See the mark-by-mark plan — for / against / judgement, with marking guidance — in study mode.

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IB-style questionCompare and contrast[15 marks]

Compare and contrast the impact of fourteenth-century crisis in Western Europe and the Islamic world.

🔒 Model answer plan

See the mark-by-mark plan — for / against / judgement, with marking guidance — in study mode.

Unlock free for 7 days →

🎯 One-glance recall

Why was 1300s Europe so vulnerable? It was overpopulated (~75–80m) and living at its Malthusian limit, with no spare food to survive a bad harvest — so the Great Famine (1315–17) and Black Death (1347–51) were catastrophic.

Why did the plague strengthen peasants? It killed a third to a half of Europe, so labour became scarce. Peasants could demand higher wages and freedom, rents fell, and serfdom faded in the West despite the Statute of Labourers (1351).

Why did people revolt — and did it work? Frozen wages and a hated poll tax sparked the Peasants' Revolt (1381, Wat Tyler and John Ball) and the earlier Jacquerie (France, 1358). Both were crushed, but serfdom still declined.

Why did the West and East diverge? In the West crisis was a catalyst for change. In the Islamic world the Abbasid Caliphate had already fallen to the Mongols in 1258, so the plague only deepened an existing decline — and trade power shifted toward Europe.

What you'll learn in Topic 6.3

  • 6.3.1 Demographic pressure, famine and plague
  • 6.3.2 Social and economic impact and revolts
  • 6.3.3 Long-term change and case studies
Suggested study order: Read the notes for each sub-topic below → test yourself with flashcards → attempt practice questions → review exam technique.

Study resources — 6.3 Crisis and change (c1300–1400)

6.3.1

Demographic pressure, famine and plague

Notes
6.3.2

Social and economic impact and revolts

Notes
6.3.3

Long-term change and case studies

Notes

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Topic 6.3 Crisis and change (c1300–1400) forms a core part of Unit 6: Paper 2 · Society and economy (750–1400) in IB History. Mastering these concepts will strengthen your understanding of connected topics across the syllabus and prepare you for exam questions that require analysis, evaluation, and real-world application.

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