如何用英語介紹奧運會的起源和歷史〔古代，現代〕？

The Olympic Games , or Olympics, is an international multi-sport event taking place every fourth year. Originally held in ancient Greece, they were revived by a French nobleman, Pierre Frèdy, Baron de Coubertin in the late 19th century. The Games of the Olympiad, better known as the Summer Olympics, have been held every fourth year since 1896, with the exception of the years during the World Wars.

Before the 1970s the Games were officially limited to competitors with amateur status, but in the 1980s many events were opened to professional athletes. Currently the Games are open to all, even the top professional athletes in basketball and football (soccer). The ancient Olympic Games included several of the sports that are now part of the Summer Games program, which at times has included events in as many as 32 different sports. In 1924 the Winter Games were sanctioned for winter sports. The Olympic Games have come to be regarded as the world's foremost sports competition.