Held every 4 years
The Ancient Greeks held the games at Olympus, Greece, thus giving the name 'The Olympic Games'. In 1894, Pierre de Coubertin wanted to continue the Olympics, and named these modern Olympics the...
they were started in Ancient Greece on Mount Olympus
There is no specific sports allowed and not allowed to compete in the games. The selection is based on the current populairity of the games
about 5 or 9.