Sifrhippus was a species of horse about the size of an average duck and roamed North America 56 million years ago.
2
A monk had once written over a book that contained information about calculus that was written by Archimedes in ancient Greece that could have made us 100 or even 1000 years more mathematically and technologically advanced.
13
In 1518, a "dancing plague" struck Strasbourg, Alsace, whereby hundreds of people danced fervently in the streets over the period of a month. Some suffered heart attacks or strokes, and many others died from sheer exhaustion. It remains unexplained.
19
The first chocolate eggs were made in Germany in the 19th century and remain one of the most popular Easter candies today.
85
In 1949, an official boxing match between a bear and a man was held. The bear won.
41
Recently, archaeologists excavating in the old medieval town of Odense in Denmark uncovered 700-year-old barrels of poop - and, to their surprise, they still smelt.
11