It is impossible to suck your own elbow.
The Mongolian khan and the Chinese emperor went hunting with 500 falcons and an entourage of 10.000 people.
Playing chess without looking at the board, was known in Persia and India back in VIII century.
The first personal computer was made in January 1975 in the company MITS in New Mexico. It cost about 395 US dollars, and customers had to assemble it by themselves. It was called the Altair 8800.
The first ski competitions were held in 1893 in Mürzzuschlag in Austria.
You will not find a clock in any Las Vegas casino.