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Unit 8: The Rise and Spread of Islam

How one prophet's message in Mecca became a caliphate stretching from Spain to India within a century, and a golden age of learning in Baghdad.

7 topics · 26 questions

Each topic is a path, not a menu: work down it in order and every question builds on the one above. Click any of them to watch the answer draw itself.

Muhammad and the Origins of Islam

  1. How it worksWalk me through Muhammad's flight from Mecca to Medina, the hijra, and why Muslims count their calendar from it.
  2. How it worksHow does Muhammad unite Arabia's fractured, warring tribes under one religious and political community?
  3. Ties togetherHow does uniting Arabia's tribes under Muhammad directly set up the rapid conquests that spread Islam across three continents in the topics that follow?
Your turn1 of 2
Muhammad received his first revelations as a merchant in Mecca around 610 CE. Within a century, Islam had spread across three continents. Why did a message delivered to one merchant end up reshaping the religious map so widely?

The Five Pillars of Islam

  1. How it worksShow me the Five Pillars as five separate obligations that together structure a Muslim's entire life.
  2. Worked exampleFind how many total prayers a Muslim performs in an average week, praying five times each day.
  3. Common mistakeWhy isn't zakat, the pillar of almsgiving, simply a voluntary act of charity left up to each person's choice?
  4. Going furtherWhat happens to a city like Mecca's economy during the month when hundreds of thousands of pilgrims arrive for hajj?
Your turn1 of 2
During each of the five daily prayers, Muslims around the world turn to face the same point: the Kaaba in Mecca. Why pray facing one shared direction?

The Early Islamic Conquests

  1. How it worksShow me Islamic armies expanding from Arabia across Persia, the Levant, and North Africa between 632 and 750.
  2. How it worksHow does a Byzantine and Sasanian empire, both exhausted by decades of war with each other, leave an opening for Arab conquest?
  3. Going furtherWhat happens to trade and administration in conquered provinces once they're absorbed into an expanding caliphate?
Your turn1 of 2
Within a couple of decades, Muslim armies from Arabia conquered vast territory from both the Byzantine and Sasanian Persian empires, two of the most powerful states in the region. Why did both great empires fall so quickly?

The Sunni-Shia Split

  1. How it worksShow me the succession dispute branching into Sunni and Shia paths after Muhammad's death in 632.
  2. How it worksHow does the martyrdom of Hussein at Karbala in 680 harden the Sunni-Shia split into a lasting religious divide?
  3. Worked exampleFind how many years pass between Muhammad's death in 632 and the martyrdom of Hussein at Karbala in 680 that hardens the split.
  4. Common mistakeWhy isn't the Sunni-Shia split primarily a disagreement over core Islamic beliefs rather than leadership?
  5. Going furtherWhat happens to the geographic spread of Sunni and Shia populations across the Islamic world after the split?
Your turn1 of 2
After Muhammad's death in 632, a dispute broke out over who should lead the Muslim community, a disagreement that split Islam into two major branches for the next 1,400 years. What was that dispute actually about?

The Abbasid Caliphate and the Islamic Golden Age

  1. How it worksShow me Baghdad's round city design placing the caliph's palace at the exact center of the capital.
  2. How it worksHow does the Abbasid caliphate blend Persian administrative methods with Arab political and religious authority?
  3. Common mistakeWhy isn't the Abbasid caliphate's power identical to that of the earlier Umayyad caliphate it overthrew?
  4. Worked exampleFind how many years the Abbasid capital sits at Baghdad before Mongol forces sack the city in 1258.
  5. Ties togetherHow does blending conquered Persian administration into Arab rule repeat the same playbook Rome used absorbing conquered peoples?
Your turn1 of 2
The Abbasid caliphate overthrew the Umayyad caliphate in 750 and moved its capital to a newly built city, Baghdad. Why isn't the Abbasid caliphate's power identical to that of the Umayyad caliphate it overthrew?

Baghdad and the House of Wisdom

  1. How it worksShow me scholars at Baghdad's House of Wisdom translating and building on Greek, Persian, and Indian knowledge.
  2. Common mistakeWhy doesn't the term Dark Ages accurately describe a period when Baghdad was the world's leading center of science?
  3. Ties togetherHow does knowledge preserved and expanded in Baghdad later flow into Europe through Islamic Spain?
Your turn1 of 2
At Baghdad's House of Wisdom, scholars spent enormous resources translating Greek, Persian, and Indian texts into Arabic. Why devote so much effort to translating other civilizations' work rather than starting from scratch?

Islam Spreads Along Trade Routes

  1. How it worksShow me Islam spreading along trans-Saharan caravan routes into West Africa and along sea routes into Southeast Asia.
  2. How it worksHow does a Muslim merchant network sharing one legal and commercial system make long-distance trade safer for everyone in it?
  3. Going furtherWhat changes about a West African trading kingdom's rulers and elite once Islam spreads along its trade routes?
Your turn1 of 2
Islam spread into West Africa and Southeast Asia mostly through merchants traveling established trade routes rather than through armies, unlike its spread near Arabia in the earliest decades. Why did merchants carry it so effectively?