Romans used a plant called Silphium as contraception. They had so much sex that they drove it into extinction.
24
The great wall of China is 1,400 miles long!
44
Leonardo da Vinci could write with one hand and draw with the other at the same time.
56
The life expectancy in 1900 was just 47 years.
49
London's Pall Mall became the first street lit by gaslight in 1807!
39
The Titanic was the first ship to use the SOS signal.
149