Summer Olympic Games 1900 Summer Olympics were already planned for Paris and, except for the 1906 Intercalated Games, the Olympics did not return to Greece until the 2004 Summer Olympics. Four years later the 1900 Summer Olympics in Paris attracted more than four times as many athletes, including 20 women, who were allowed to officially compete for the first time, in croquet, golf, sailing, and tennis. The Games were integrated with the Paris World's Fair and lasted over 5 months. It is still disputed which events exactly were "Olympic", since few or maybe even none of the events were advertised as such at
Olympic Games and volleyball, first appeared on the programme as demonstration sports, and were later promoted to full Olympic sports. Some sports that were featured in earlier Games were later dropped from the programme. Olympic sports are governed by international sports federations (IFs) recognised by the IOC as the global supervisors of those sports. There are 35 federations represented at the IOC. There are sports recognised by the IOC that are not included on the Olympic program. These sports are not considered Olympic sports, but they can be promoted to this status during a programme revision that occurs in the first IOC