In many countries, urine was used as a detergent for washing.
17
The best diamonds are colored blue-white.
80
A new baby usually deprives each of it's parents around 350-400 hours of sleep in the first year. That is one entire nights sleep per week, per parent.
194
Teddy bears were named after U.S. President Theodore 'Teddy' Roosevelt.
23
The glue on Israeli stamps is certified kosher.
67
Caffeine boosts memory.
405
Stilts were invented by French shepherds who needed a way to get around in wet marshes.
45