The Olympic torch relay was introduced in the 20th century.

Ancient Chinese armies used crossbows extensively.

Fact #1434 · History

Dragonflies can fly in all directions, including backward.

Fact #352 · History

Teotihuacan was a major city in ancient Mesoamerica.

Fact #1643 · History

The Roman Empire significantly influenced law and architecture in Europe.

Fact #28 · History

The Roman Colosseum could hold tens of thousands of spectators.

Fact #92 · History

Ancient armies often relied on supply lines for survival.

Fact #1458 · History

The Persian Empire established an efficient administrative system.

Fact #1147 · History

The Tang Dynasty is remembered for cultural achievements in China.

Fact #1156 · History