Individuals & Societies · Topic 5.1
Medieval History and World Religions
The medieval period (roughly 500–1500 CE) saw the rise of feudal systems, the Crusades, devastating plagues, and the continued spread of the world's major religions. Understanding this era helps explain how modern political, social, and religious structures developed.
What You'll Learn
- Describe the structure and function of the feudal system in medieval Europe
- Explain key events: the Crusades, the Black Death, and the development of trade routes
- Compare the beliefs, sacred texts, and origins of five major world religions
- Analyse causes and effects of historical events using evidence
- Distinguish between causation and correlation in historical analysis
- Explain why the feudal system declined in the 14th–15th centuries
IB Assessment Focus
Criterion A: Recall facts about feudalism, world religions, and medieval events accurately.
Criterion B: Identify patterns in historical change; ask questions about sources.
Criterion C: Support every claim with evidence (a date, statistic, or specific example).
Criterion D: Apply historical thinking to explain how the past shapes the present.
I&S · Topic 5.1
Feudalism and Medieval Society
Feudalism was the dominant social and political system in medieval Europe (roughly 9th–15th centuries). It organised society into a strict hierarchy based on land ownership and military service.
The Feudal Hierarchy
From most to least powerful:
- Monarch (King/Queen): Owned all land in theory; granted land (fiefs) to lords in exchange for military loyalty
- Lords/Barons: Held large estates; provided knights to the monarch; sub-granted land to knights
- Knights: Professional warriors; received land from lords; defended the realm on horseback
- Serfs/Peasants: At the bottom; bound to work the lord's land (manors); had very few rights; could not leave without permission
Key Vocabulary
| Term | Definition |
|---|---|
| Feudalism | A medieval social system where land was exchanged for military service and loyalty |
| Serf | A peasant bound to a lord's land with limited rights — not a slave, but not free |
| Vassal | A person who holds land from a lord in exchange for loyalty and service |
| Fief | Land granted by a lord to a vassal in exchange for military service |
| Manor | The lord's estate — the basic economic and social unit of feudal society |
| Chivalry | The knightly code of honour, bravery, and courtesy |
Critical Rule: In history, causation (what caused something) is different from correlation (two things happening at the same time). Good historians explain causes with evidence, not just list events that happened before or after. Always answer "WHY did this happen?" not just "WHEN did this happen?"
I&S · Topic 5.1
Key Medieval Events
Several major events defined the medieval period and shaped the transition to the modern world.
The Crusades (1095–1291)
- What: A series of religious wars launched by European Christian kingdoms to reclaim the Holy Land (Jerusalem) from Muslim rule
- Who: Pope Urban II called the First Crusade in 1095; European kings and knights participated
- Outcomes: Exposed Europe to Islamic science, medicine, and culture; increased trade between Europe and the Middle East; left a legacy of religious conflict
The Black Death (1347–1352)
- What: A devastating outbreak of bubonic plague that swept across Europe
- Scale: Killed approximately one-third of Europe's population (25–50 million people)
- Cause: Caused by the bacterium Yersinia pestis, spread via fleas on rats along trade routes
- Effects: Labour shortage → peasants gained bargaining power; weakening of feudal system; religious questioning and social upheaval
Medieval Trade Routes
- Silk Road: Land trade route connecting Europe to China, carrying silk, spices, and ideas
- Hanseatic League: A network of trading cities in Northern Europe that controlled Baltic and North Sea trade
- Effects of trade: Growth of towns and a merchant class; spread of goods, diseases (Black Death), and ideas; erosion of feudal isolation
I&S · Topic 5.1
World Religions
The major world religions spread across the medieval world through trade, conquest, and missionary activity. Understanding them is essential for understanding medieval history and contemporary global culture.
The Five Major World Religions
| Religion | Founder/Origin | Core Beliefs | Sacred Text | Type |
|---|---|---|---|---|
| Christianity | Jesus (1st cent. CE) | Salvation through Jesus; Trinity (Father, Son, Holy Spirit); resurrection | Bible | Monotheistic |
| Islam | Muhammad (7th cent. CE) | One God (Allah); Five Pillars; Muhammad as final prophet | Quran | Monotheistic |
| Judaism | Abraham (~2000 BCE) | Covenant with God; 613 commandments; Torah law; awaiting the Messiah | Torah | Monotheistic |
| Hinduism | No single founder (~1500 BCE+) | Dharma (duty); reincarnation; karma; moksha (liberation); many deities | Vedas | Polytheistic/Henotheistic |
| Buddhism | Siddhartha Gautama (~500 BCE) | Four Noble Truths; Eightfold Path; ending suffering (nirvana); impermanence | Tripitaka | Non-theistic |
The Five Pillars of Islam
- Shahada: Declaration of faith ("There is no God but Allah, and Muhammad is his prophet")
- Salat: Prayer five times daily, facing Mecca
- Zakat: Charitable giving (2.5% of savings to the poor)
- Sawm: Fasting during the holy month of Ramadan
- Hajj: Pilgrimage to Mecca, at least once in a lifetime if able
I&S · Topic 5.1
Decline of Feudalism
By the 15th century, feudalism had largely collapsed. Multiple interrelated causes contributed to its decline.
Causes of the Decline of Feudalism
- The Black Death (1347–1352): Killed ~1/3 of Europe's population → severe labour shortage → surviving peasants could demand better wages and conditions → weakened lords' power
- Growth of towns and trade: An emerging merchant class accumulated wealth independently of land ownership → operated outside the feudal system → created alternative power structures
- Rise of centralised monarchies: Kings grew more powerful and created professional armies → less dependent on lords for military service → reduced the role of feudal military obligation
- Peasants' revolts: E.g., the English Peasants' Revolt (1381) challenged feudal authority directly
- Changed warfare: New weapons (longbow, later gunpowder) made expensive heavily armoured knights less effective
IB Skill: When explaining the decline of feudalism, show how the causes are interconnected. The Black Death created a labour shortage, which gave peasants more bargaining power, which contributed to peasant revolts, which weakened lords' authority. Historians call this a chain of causation.
I&S · Topic 5.1
Worked Examples
These examples show the level of historical reasoning expected at Grade 7. Notice how every claim is supported with specific evidence.
EXAMPLE 1Explain TWO causes of the decline of feudalism in medieval Europe.
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Full Solution
First, the Black Death (1347–1352) killed approximately one-third of Europe's population, creating a severe labour shortage. Surviving peasants could demand better wages and conditions, as lords desperately needed workers. This fundamentally undermined the feudal system's rigid social hierarchy.
Second, the growth of trade and towns created an emerging merchant class that operated outside the feudal system, accumulating wealth through commerce rather than land ownership. As towns grew, serfs sometimes escaped to them, and former serfs became tradespeople, lawyers, and merchants — eroding the system's foundation.
Second, the growth of trade and towns created an emerging merchant class that operated outside the feudal system, accumulating wealth through commerce rather than land ownership. As towns grew, serfs sometimes escaped to them, and former serfs became tradespeople, lawyers, and merchants — eroding the system's foundation.
EXAMPLE 2Compare the origins of Christianity and Islam.
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Full Solution
Both Christianity and Islam are monotheistic Abrahamic religions originating in the Middle East.
Christianity began in 1st century CE with the life and teachings of Jesus of Nazareth in Roman-controlled Judea. Christians believe Jesus was the Son of God, that he died on the cross for human sins, and was resurrected. The sacred text is the Bible.
Islam began in 7th century CE with the Prophet Muhammad in Arabia. Muslims believe Muhammad received revelations from Allah (God) via the angel Gabriel, compiled in the Quran. Islam spread rapidly across the Middle East, North Africa, and Spain within a century of Muhammad's death in 632 CE.
Christianity began in 1st century CE with the life and teachings of Jesus of Nazareth in Roman-controlled Judea. Christians believe Jesus was the Son of God, that he died on the cross for human sins, and was resurrected. The sacred text is the Bible.
Islam began in 7th century CE with the Prophet Muhammad in Arabia. Muslims believe Muhammad received revelations from Allah (God) via the angel Gabriel, compiled in the Quran. Islam spread rapidly across the Middle East, North Africa, and Spain within a century of Muhammad's death in 632 CE.
EXAMPLE 3Describe the role of a serf in the feudal system.
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Full Solution
Serfs were at the bottom of the feudal hierarchy. They were not slaves but were bound to the land — they could not leave the manor without the lord's permission. In exchange for the lord's protection, serfs worked on the lord's land (typically 2–3 days per week), paid various taxes and fees, and could be required to do additional labour during harvest. They could own small personal property and farm a plot of land for themselves on remaining days. Their lives were largely controlled by the lord and the seasonal demands of agriculture.
EXAMPLE 4Explain the significance of the Black Death for the development of medieval society.
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Full Solution
The Black Death (1347–1352) was a catastrophic pandemic that killed approximately one-third of Europe's population. Its significance was enormous:
1. Economic: Labour became scarce; wages rose as lords competed for workers
2. Social: The rigid class structure of feudalism was undermined as peasants gained bargaining power
3. Religious: The Church's inability to explain or prevent the plague led to questioning of its authority
4. Long-term: Contributed directly to the decline of feudalism and the eventual rise of capitalism and free labour
1. Economic: Labour became scarce; wages rose as lords competed for workers
2. Social: The rigid class structure of feudalism was undermined as peasants gained bargaining power
3. Religious: The Church's inability to explain or prevent the plague led to questioning of its authority
4. Long-term: Contributed directly to the decline of feudalism and the eventual rise of capitalism and free labour
EXAMPLE 5What were the Five Pillars of Islam and why were they important?
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Full Solution
The Five Pillars are the core practices required of Muslims: Shahada (declaration of faith), Salat (five daily prayers), Zakat (charitable giving), Sawm (fasting during Ramadan), and Hajj (pilgrimage to Mecca).
They were important because they provided a shared framework of practice that unified Muslims across different cultures and regions. The Hajj, for example, brought Muslims from across the world to Mecca, fostering a sense of community (Ummah). Zakat reduced economic inequality by redistributing wealth.
They were important because they provided a shared framework of practice that unified Muslims across different cultures and regions. The Hajj, for example, brought Muslims from across the world to Mecca, fostering a sense of community (Ummah). Zakat reduced economic inequality by redistributing wealth.
EXAMPLE 6Explain the difference between causation and correlation with a medieval example.
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Full Solution
Correlation: Two events happen around the same time. The Black Death (1347–1352) and the decline of feudalism both occurred in the 14th century. This is a correlation.
Causation: One event directly causes another. The Black Death caused the decline of feudalism because it killed so many peasants that those who survived could demand better wages, which weakened lords' power, which eroded the feudal system. Here, the mechanism (labour shortage → higher wages → peasant empowerment) is clear. Correlation becomes causation when we can explain how one thing led to the other with evidence.
Causation: One event directly causes another. The Black Death caused the decline of feudalism because it killed so many peasants that those who survived could demand better wages, which weakened lords' power, which eroded the feudal system. Here, the mechanism (labour shortage → higher wages → peasant empowerment) is clear. Correlation becomes causation when we can explain how one thing led to the other with evidence.
EXAMPLE 7Describe how the Crusades increased contact between European and Islamic civilisations.
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Full Solution
The Crusades brought European Christians into sustained contact with Islamic culture in the Middle East. Crusaders encountered more advanced Islamic knowledge in medicine, mathematics, astronomy, and philosophy (much of it preserved from ancient Greek sources). When crusaders returned home, they brought back: new foods and spices (sugar, cotton), translated Arabic texts, astronomical knowledge, and architectural techniques. This cultural exchange helped contribute to the intellectual revival of Europe that eventually led to the Renaissance.
I&S · Topic 5.1
Practice Q&A
Attempt each question before revealing the model answer. Always support your answers with specific evidence.
IDENTIFYWho was at the LOWEST level of the feudal hierarchy?
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Model Answer
Serfs were at the lowest level. They were bound to work the lord's land, had very limited rights, and could not leave the manor without permission. Above them were knights, then lords/barons, then the monarch.
DESCRIBEDescribe what the Black Death was and when it occurred.
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Model Answer
The Black Death was a devastating plague (caused by the bacterium Yersinia pestis, spread by flea-infested rats along trade routes) that swept across Europe between 1347 and 1352. It killed approximately one-third of Europe's population — an estimated 25–50 million people — and had profound social, economic, and religious consequences.
COMPARECompare monotheism and polytheism. Give an example of each from the world religions.
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Model Answer
Monotheism: Belief in one God. Examples: Christianity, Islam, Judaism — all believe in a single, all-powerful deity. Polytheism: Belief in multiple gods. Example: Hinduism recognises many deities (such as Vishnu, Shiva, Brahma), though some Hindus consider these as aspects of one ultimate reality.
EXPLAINWhy did the growth of towns help undermine feudalism?
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Model Answer
Growing towns created an alternative to the feudal system. Serfs could sometimes escape to towns (after one year and one day, many gained freedom). Towns produced a new merchant and professional class (merchants, lawyers, craftspeople) who accumulated wealth through trade rather than land. This class operated outside the feudal hierarchy and did not owe military service to lords, weakening the feudal structure.
IDENTIFYName the Five Pillars of Islam in order.
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Model Answer
1. Shahada — Declaration of faith
2. Salat — Prayer five times daily
3. Zakat — Charitable giving
4. Sawm — Fasting during Ramadan
5. Hajj — Pilgrimage to Mecca
2. Salat — Prayer five times daily
3. Zakat — Charitable giving
4. Sawm — Fasting during Ramadan
5. Hajj — Pilgrimage to Mecca
EXPLAINExplain what a vassal was and what obligations they had to their lord.
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Model Answer
A vassal was a person who received a fief (land) from a lord in exchange for loyalty and service. Obligations included: providing military service (knights for the lord's army), attending the lord's court, paying various fees (e.g., when the lord's son was knighted or his daughter married), and giving counsel (advice). The relationship was formalised in a ceremony called "homage," where the vassal swore an oath of loyalty.
APPLYA historian argues that the Crusades "failed." Do you agree? Support your view with evidence.
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Model Answer
In terms of their stated military goal — permanently reclaiming Jerusalem for Christianity — the Crusades largely failed. After initial success in the First Crusade (1099), Jerusalem was recaptured by Saladin in 1187, and the Crusader states were eventually lost by 1291.
However, whether the Crusades were a "failure" depends on how they are measured. They had significant unintended consequences: increased trade between Europe and the Middle East, transfer of Islamic scientific and philosophical knowledge to Europe, and strengthened the Italian city-states (Venice, Genoa) through their role in supplying crusaders. These effects arguably shaped European development significantly.
However, whether the Crusades were a "failure" depends on how they are measured. They had significant unintended consequences: increased trade between Europe and the Middle East, transfer of Islamic scientific and philosophical knowledge to Europe, and strengthened the Italian city-states (Venice, Genoa) through their role in supplying crusaders. These effects arguably shaped European development significantly.
DESCRIBEDescribe the Four Noble Truths of Buddhism.
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Model Answer
1. Dukkha (Suffering): Life is characterised by suffering, dissatisfaction, and impermanence
2. Samudaya (Origin of suffering): Suffering is caused by craving and attachment
3. Nirodha (Cessation of suffering): Suffering can be ended by overcoming craving
4. Magga (The Path): The Eightfold Path leads to the cessation of suffering and ultimate liberation (nirvana)
2. Samudaya (Origin of suffering): Suffering is caused by craving and attachment
3. Nirodha (Cessation of suffering): Suffering can be ended by overcoming craving
4. Magga (The Path): The Eightfold Path leads to the cessation of suffering and ultimate liberation (nirvana)
I&S · Review
Flashcard Review
Tap each card to reveal the answer. Try to answer from memory first.
What was feudalism?
A medieval social system where land (fiefs) was granted in exchange for military service and loyalty. Hierarchy: Monarch → Lords → Knights → Serfs.
Tap to reveal
Who were the serfs?
Peasants at the bottom of the feudal system, bound to work the lord's land. Not slaves, but could not leave without permission. Limited rights.
Tap to reveal
When was the Black Death and how many people did it kill?
1347–1352. Killed approximately one-third of Europe's population (25–50 million people). Caused by the bacterium Yersinia pestis.
Tap to reveal
What were the Crusades?
A series of religious wars (1095–1291) launched by European Christians to reclaim the Holy Land (Jerusalem) from Muslim rule.
Tap to reveal
What are the Five Pillars of Islam?
Shahada (faith declaration), Salat (5 daily prayers), Zakat (charity), Sawm (fasting in Ramadan), Hajj (pilgrimage to Mecca).
Tap to reveal
What is monotheism? Name three monotheistic religions.
Belief in one God. Christianity, Islam, and Judaism are all monotheistic.
Tap to reveal
What is the sacred text of Islam?
The Quran — believed by Muslims to be the direct word of Allah as revealed to the Prophet Muhammad.
Tap to reveal
Name the founder and approximate date of Buddhism.
Siddhartha Gautama (~500 BCE), who became the Buddha (Enlightened One). Founded in northern India (modern Nepal/India).
Tap to reveal
Causation vs correlation in history?
Causation = one event directly causes another (mechanism is clear). Correlation = two events happen around the same time but don't necessarily cause each other.
Tap to reveal
Give TWO causes of the decline of feudalism.
1. Black Death (1347–52): labour shortage gave peasants bargaining power. 2. Growth of trade and towns: created merchant class outside feudal system.
Tap to reveal
What is a fief?
Land granted by a lord to a vassal in exchange for military service and loyalty. The basic unit of the feudal land arrangement.
Tap to reveal
What is the sacred text of Hinduism?
The Vedas (the oldest Hindu scriptures). Other important texts include the Bhagavad Gita and the Upanishads.
Tap to reveal
What is karma in Hinduism and Buddhism?
The principle of cause and effect: good actions produce good results in this or future lives; bad actions produce bad results. Related to the cycle of reincarnation.
Tap to reveal
What was the Silk Road?
An ancient network of trade routes connecting Europe, the Middle East, Central Asia, and China. Carried silk, spices, and ideas (including the Black Death) between civilisations.
Tap to reveal
How did the Black Death affect feudalism?
It killed ~1/3 of Europe's population, creating a labour shortage. Surviving peasants could demand better pay and conditions, weakening lords' power and undermining the feudal system.
Tap to reveal
I&S · Practice Test
Practice Test — 20 Questions
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