Economist Arthur Laffer famously sketched the Laffer Curve on a napkin during a dinner meeting in the 1970s.

The 16th Amendment authorized a federal income tax.

Fact #1124 · Culture

The development of artificial joints improved mobility.

Fact #1228 · Culture

The Spartan military culture emphasized discipline and endurance.

Fact #1435 · Culture

The Siege of Troy is a legendary conflict described in Greek epic poetry.

Fact #1428 · Culture

Velociraptors were smaller than often portrayed in movies.

Fact #621 · Culture

The lost city of Ubar is mentioned in Arabian legends.

Fact #1657 · Culture

Carthage was destroyed by Rome in 146 BCE.

Fact #1638 · Culture

The Civil Rights Act of 1964 outlawed discrimination based on race, color, religion, sex, or national origin.

Fact #1102 · Culture