Summer Olympic Games team events. American swimmer Michael Phelps set a record for gold medals at a single Games with eight, and tied the record of most gold medals by a single competitor previously held by both Heiden and Scherbo. Another major star of the Games was Jamaican sprinter Usain Bolt, who became the first male athlete ever to set world records in the finals of both the 100 and 200 metres in the same Games. Equestrian events were held in Hong Kong. London held the 2012 Summer Olympics, becoming the first city to host the Games three times. In his closing address
Bids for the 2018 Summer Youth Olympics IOC Executive Board selected three candidate cities. On August 30, 2011 Buenos Aires and the Argentine Olympic Committee announced that they will bid for the 2018 Summer Youth Olympic Games. Buenos Aires bid to host the 1956 and 2004 Summer Olympics but lost to Melbourne and Athens respectively. On September 19, 2011, it was announced that Glasgow would submit to the British Olympic Association (BOA) a proposal to bid for the 2018 Summer Youth Olympics. Glasgow hosted the 2014 Commonwealth Games. The city has never made an Olympic bid before. On February 22, 2012 the BOA agreed to put Glasgow