In 1700s, the deer skin was a common medium of exchange between the trading settlers and the native Red Indians in America. This is how a buck became a slang for a dollar.
28
Grenades were invented in China over 1,000 years ago.
50
Approximately 25,000 workers died during the building of the Panama Canal, and approximately 20,000 of them contracted malaria and yellow fever.
14
Although Nostradamus died in the middle of 1566, his 1567 almanac was published because he had the foresight to prepare it before his death.
19
Napoleon had conquered Italy by the time he was twenty-six.
74
Until the nineteenth century, solid blocks of tea were used as money in Siberia.
80
The U.S. motto, 'In God We Trust', was not adopted as the national slogan until 1956.
72