The last time American Green cards were actually green was 1964.
60
A baboon called Jackie became a private in the South African army in World War I.
65
India invented the Number System. Zero was invented by Aryabhatta.
59
Allegedly, Chrysippus, the Greek philosopher, died of laughter after getting his donkey drunk and watching it try to eat figs.
47
The first ever patent in the UK was Aaron Rathbone & Roger Burges, Map makers in 1618!
15
Originally, Du Pont, Inc. was a tiny gun powder mill in New Jersey.
20