World History
Core concepts to command
World History questions reward pattern recognition across eras. Build a timeline around: the Neolithic Revolution; river-valley civilizations (Mesopotamia, Egypt, Indus, Shang); classical empires (Persia, Greece, Rome, Han, Maurya and Gupta); belief systems (Hinduism, Buddhism, Judaism, Christianity, Islam) and their spread; the Silk Roads and Indian Ocean trade; the Mongol conquests; the Black Death; the Renaissance and Reformation; the Scientific Revolution and Enlightenment; exploration and the Columbian Exchange; the Atlantic revolutions; industrialization; imperialism; the world wars; decolonization; and globalization.
Traps
Beware Eurocentrism: the exam expects recognition that Song China, the Abbasid caliphate, Mali, and the Aztec and Inca states were sophisticated and central, not peripheral. Do not treat similar institutions as identical, e.g., Japanese feudalism versus European feudalism, or Chinese examination systems versus European guilds. Questions also test distinguishing long-term causes from immediate triggers, particularly for the world wars, and avoiding the assumption that technological diffusion moved in one direction.
Rule of thumb
For revolution and empire questions, ask: fiscal strain plus a legitimacy crisis plus a new mobilized class. That triad explains the Atlantic revolutions, the collapse of the Qing, and the Russian Revolution reasonably well.
Worked example
"What best explains the rapid spread of Islam in the century after Muhammad's death?" Strong answer: the Byzantine and Sassanid empires were exhausted by prolonged war, while Islamic forces offered a coherent legal-religious framework and flexible treatment of conquered peoples. A weak answer credits conversion by the sword alone; conversion was gradual and often voluntary over centuries.