History archive

Browse the daily timeline puzzles and the history cards collected so far.

12 Daily puzzles39 History cards

Daily puzzles

2026-07-10

Modern Accelerations

Digital Age

2026-07-09

Knowledge Spreads

Culture & Technology

2026-07-08

After the War

Modern World

2026-07-07

The Atlantic Century

Exploration & Revolutions

2026-07-06

Empires Turn

Empires & Kingdoms

2026-07-05

Science Changes Scale

Science & Invention

2026-07-04

Revolutions and Ruptures

Revolutions & Wars

2026-07-03

Routes of the World

Exploration & Trade

2026-07-02

Ideas in Motion

Culture & Ideas

2026-07-01

Law and the Ruler

Law & Power

2026-06-30

Cities That Ruled

Cities & Empires

2026-06-29

Origins of Power

Ancient Worlds

History cards

2560 BC

Great Pyramid of Giza

A royal tomb became one of history's most durable monuments.

1754 BC

Code of Hammurabi

A Babylonian king carved one of the earliest legal codes in stone.

753 BC

Founding of Rome

A legendary city began a story that later shaped the Mediterranean.

480 BC

Life of the Buddha

The teachings of Siddhartha Gautama began a major world religion.

326 BC

Alexander Reaches India

Macedonian armies pushed Greek influence deep into Asia.

221 BC

Qin Unifies China

Warring states were joined under China's first emperor.

49 BC

Caesar Crosses the Rubicon

A general crossed a river and forced Rome into civil war.

330 AD

Constantinople Founded

A new imperial capital rose where Europe and Asia meet.

622 AD

The Hijra

Muhammad's migration to Medina became year one of the Islamic calendar.

800 AD

Charlemagne Crowned Emperor

A Frankish king revived the imperial title in western Europe.

1215 AD

Magna Carta Sealed

English barons forced limits onto royal power.

1258 AD

Sack of Baghdad

Mongol armies shattered a major center of Abbasid power.

1324 AD

Mansa Musa's Hajj

A West African ruler displayed Mali's wealth on the road to Mecca.

1347 AD

Black Death in Europe

A pandemic transformed societies across Europe, Asia, and North Africa.

1405 AD

Zheng He's First Voyage

Huge Ming fleets sailed through Southeast Asia and the Indian Ocean.

1453 AD

Fall of Constantinople

The Ottomans captured the city that had anchored Byzantium.

1455 AD

Gutenberg's Printing Press

Movable type helped books and ideas travel faster.

1492 AD

Columbus Crosses the Atlantic

A voyage linked the Americas, Europe, and global empire-building.

1494 AD

Treaty of Tordesillas

Spain and Portugal divided claims to lands beyond Europe.

1513 AD

The Prince Written

Machiavelli described power without much sentiment.

1517 AD

Luther's Ninety-Five Theses

A religious dispute helped fracture western Christianity.

1633 AD

Galileo's Trial

Astronomy collided with church authority.

1648 AD

Peace of Westphalia

A settlement helped end the Thirty Years' War.

1687 AD

Newton Publishes Principia

A mathematical book changed how motion and gravity were understood.

1776 AD

American Declaration of Independence

Thirteen colonies announced a break from Britain.

1789 AD

French Revolution Begins

A crisis in France became a revolution with global echoes.

1804 AD

Haiti Declares Independence

An enslaved people's revolt became an independent state.

1868 AD

Meiji Restoration

Japan reorganized imperial rule and rapidly modernized.

1869 AD

Suez Canal Opens

A canal shortened the sea route between Europe and Asia.

1876 AD

Telephone Patent

Voice communication began moving through wires.

1903 AD

First Powered Flight

The Wright brothers made controlled powered flight real.

1917 AD

Russian Revolution

Imperial Russia collapsed and a communist state emerged.

1945 AD

United Nations Charter

A new institution tried to organize peace after world war.

1957 AD

Sputnik Launch

The first artificial satellite intensified the space race.

1969 AD

Apollo 11 Moon Landing

Humans walked on another world for the first time.

1989 AD

Berlin Wall Falls

A concrete symbol of the Cold War opened overnight.

1991 AD

World Wide Web Opens

A new information system began changing daily life.

1994 AD

South Africa's First Multiracial Election

Apartheid ended through a democratic national vote.

2007 AD

iPhone Launch

A phone helped make touchscreens and mobile apps mainstream.