Pierre Jaquet-Droz, a watchmaker, 240 years ago invented a robot that could write, and the parts could be interchanged to say whatever you want.
13
Leonardo Da Vinci loved animals so much that he used to buy caged animals at the market just to set them free.
57
During World War 1, Harry Houdini took 1 year off performing to help sell war bonds and teach american soldiers how to escape from German handcuffs.
34
The oldest stone tools found are dated from 2.7 - 2.9 million years ago. The species that made these tools is unknown.
13
Grenades were invented in China over 1,000 years ago.
50
In Ancient Greece, if a woman watched even one Olympic event, she was executed.
40