The Inca used a knotted string system called quipu to record data — still not fully decoded.
Fact #8351
👍 0 · 👎 0
More History Facts
The Tuskegee Syphilis Study withheld treatment from participants for decades.
Fact #1044 · History
In 1919, a tank filled with molasses burst in Boston, creating a deadly wave through city streets.
Fact #757 · History
The asteroid impact linked to dinosaur extinction occurred about 66 million years ago.
Fact #695 · History
The Great Wall was built over multiple dynasties.
Fact #148 · History
The Wright brothers made their first powered flight in 1903.
Fact #608 · History
The shortest recorded war in history lasted less than an hour between Britain and Zanzibar.
Fact #760 · History
The Magna Carta influenced modern constitutional law.
Fact #57 · History
The Great Depression began in 1929.
Fact #615 · History
Want more facts?
We have over 11,491 facts across 15 categories.