1906 - The 1906 Summer Olympics, not now recognized as part of the official Olympic Games, opens in Athens.
The 1906 Summer Olympics, also called the 1906 Intercalated Games, were held in Athens, Greece. These games are not awarded the title of Olympiad because they were held between the III and IV Olympiads. While medals were distributed to the participants during these games, the medals are not officially recognized by the IOC.
1906 夏季奥林匹克运动会，在希腊,雅典所举行，也称为1906 年届间运动会。这次运动会是在第三届与第四届的国际奥林匹克运动会之间所举办的，故称“届间”，而没有冠上 国际奥林匹克运动会 的名称，比赛期间所颁发的奖牌，也没有被国际奥林匹克委员会所正式承认。