Ancient Romans at one time used human urine as an ingredient in their toothpaste.
37
In 2011, a couple bought a box of textbooks for $10. Inside, they found a 25-cent bill signed by the president of the Republic of Texas, Sam Houston, and subsequently sold it for $63,250.
13
Until the nineteenth century, solid blocks of tea were used as money in Siberia.
80
London's Pall Mall became the first street lit by gaslight in 1807!
39
Che Guevara suffered from asthma!
9
The last time American Green cards were actually green was 1964.
60