The first semi-permanent settlements appeared in Florida around 5000 B.C.
10
During the Cold War, the US had planned to detonate a nuclear weapon on the moon.
25
Clocks made before 1660 had only one hand - an hour hand.
41
There’s a Swedish power metal band called “Sabaton” who teach history through their music, including an album devoted to teaching about World War Two.
30
Until President Kennedy was killed, it wasn't a federal crime to assassinate the President.
341
Leonardo Da Vinci loved animals so much that he used to buy caged animals at the market just to set them free.
57