Leonardo Da Vinci predicted the mass use of solar energy as long ago as 1447.
153
Leonardo Da Vinci loved animals so much that he used to buy caged animals at the market just to set them free.
57
In Ancient Egypt, some people paid their taxes in honey.
152
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
In 1980, the city of Detroit presented Saddam Hussein with a key to the city.
29
Until the nineteenth century, solid blocks of tea were used as money in Siberia.
80
Kung Fu actually originated in India, but was developed further in China.
90
The Titanic was the first ship to use the SOS signal.
149