The Persian Empire built an extensive network of roads.
Fact #600
👍 0 · 👎 0
More History Facts
The Bell Labs experiment led to the discovery of the cosmic microwave background.
Fact #1021 · History
The discovery of anesthesia allowed painless surgical procedures.
Fact #1230 · History
The U.S. government established the Office of Strategic Services during World War II.
Fact #1086 · History
The Qing Dynasty was the last imperial dynasty of China.
Fact #1159 · History
Ancient siege towers were used to scale city walls.
Fact #1447 · History
Angkor was once the center of the Khmer Empire.
Fact #1636 · History
The steam engine played a major role in the Industrial Revolution.
Fact #68 · History
The Battle of Actium helped determine control of the Roman world.
Fact #1436 · History
Want more facts?
We have over 11,441 facts across 15 categories.