Humanities · Subjects

World History

An era-by-era timeline with the turning points and vocabulary that come up most often in world history courses.

~3500 BCE - 500 CE

Ancient civilizations

Civilization	Known for
Mesopotamia	Cradle of civilization; cuneiform writing, the Code of Hammurabi, invention of the wheel
Ancient Egypt	Pyramids and pharaohs, the Nile's flooding cycle enabling agriculture, hieroglyphics
Ancient Greece	Birthplace of democracy (Athens), philosophy (Socrates, Plato, Aristotle), and the Olympic Games
Roman Empire	Republic-turned-empire; law codes, engineering (aqueducts, roads), spread of Latin
Han & Qin China	Unification under the Qin, the Great Wall's origins, the Silk Road's early trade networks

Cause and effect to remember: Rome's overexpansion, economic strain, and repeated invasions led to its fall in the West in 476 CE - a pattern (overreach → strain → collapse) that repeats across empires.

~500 - 1400 CE

The medieval period

Feudalism: A hierarchical system where land was exchanged for military service and loyalty - king, lords, knights, peasants.
The Crusades: A series of religious wars (1095-1291) between European Christians and Muslim states over control of the Holy Land.
The Islamic Golden Age: A period of major advances in science, medicine, and mathematics across the Islamic world, roughly 8th-14th centuries.
The Black Death: A plague pandemic (1347-1351) that killed an estimated one-third of Europe's population, reshaping labor and social structures.

~1400 - 1800 CE

Early modern turning points

Event	Why it matters
The Renaissance	Revival of classical learning and art in Europe, starting in Italy in the 1300s-1400s
Age of Exploration	European voyages (Columbus, Magellan) opened global trade routes and began colonization
The Reformation	Martin Luther's 1517 challenge to the Catholic Church split European Christianity
The Enlightenment	18th-century movement emphasizing reason, individual rights, and scientific thinking - directly influenced the American and French Revolutions

1800 CE - present

The modern era

Industrial Revolution: Shift from hand production to machine manufacturing, beginning in Britain in the late 1700s, that reshaped economies and cities worldwide.
World War I (1914-1918): Triggered by the assassination of Archduke Franz Ferdinand; drew in alliance networks across Europe and redrew national borders after.
World War II (1939-1945): The deadliest conflict in history, ending with the defeat of the Axis powers and the start of the Cold War between the US and USSR.
Decolonization: The wave of former colonies gaining independence in the mid-to-late 20th century, especially across Africa and Asia.