In 1666, the fire that destroyed most of the city of London, at the same time has ended the plague. Mostly because the fire killed infected rats who were the carriers of the disease.
Women are much more adept at reading backward and identifying hidden 3D drawings thanks to better ties between the two hemispheres of the brain.
Leonardo da Vinci made the first draft for the contact lenses. They should have been made of thin glass filled with water...
The Mongolian khan and the Chinese emperor went hunting with 500 falcons and an entourage of 10.000 people.
Horses usually sleep standing up. Their feet have a particular system of tendons, bones, and joints that effortlessly hold the weight of this large animal. When the muscles are in a standstill, they are completely relaxed.
Geese were the first birds domesticated by man.
