In many countries, urine was used as a detergent for washing.
17
The first household refrigerators cost about $16,000, in today's money!
47
American car horns beep in the tone of F.
66
The key to happiness is spending your money on experiences rather than possessions, according to studies.
21
The best diamonds are colored blue-white.
80
There is one slot machine in Las Vegas for every eight inhabitants.
58
The Main Library at Indiana University sinks over an inch every year because when it was built, engineers failed to take into account the weight of all the books that would occupy the building.
240