The life expectancy in 1900 was just 47 years.
49
Harry S. Truman was the last U.S. President with no college degree.
55
Traces of cocaine were found on 99% of UK bank notes in a survey in London in 2000.
142
A baboon called Jackie became a private in the South African army in World War I.
65
The flushing toilet was invented in 1596, not by Thomas Crapper as most people think, but by Sir John Harington.
98
A singing birthday card has more computing power than the allied forces in 1945.
30
Leonardo Da Vinci predicted the mass use of solar energy as long ago as 1447.
153
The World Trade Center towers used to have two zip codes, 10047-10048, one for each building.
77