Ancient Romans at one time used human urine as an ingredient in their toothpaste.
37
High Heels were originally made for men in the 16th century.
78
The first semi-permanent settlements appeared in Florida around 5000 B.C.
10
The life expectancy in 1900 was just 47 years.
49
Modern humans first appeared about 200,000 years ago, but record keeping didn't begin until about 6,000 years ago. That means about 97% of human history is lost.
21
Che Guevara suffered from asthma!
9
A singing birthday card has more computing power than the allied forces in 1945.
30