The ancient Library of Alexandria may have functioned as a research institute where scholars received stipends.

The ancient Roman aqueducts transported water over long distances.

Fact #1530 · History

The Empire State Building survived a plane crash in 1945.

Fact #1542 · History

The ancient city of Persepolis was the ceremonial capital of Persia.

Fact #1649 · History

Angkor was once the center of the Khmer Empire.

Fact #1636 · History

The Crusades were a series of religious wars in the Middle Ages.

Fact #606 · History

Ancient Greece made contributions to mathematics and philosophy.

Fact #292 · History

The Roman Empire significantly influenced law and architecture in Europe.

Fact #28 · History

The Opium Wars affected trade between China and Britain.

Fact #1174 · History