The USA team, featuring Michael Phelps in his final London 2012 race, win the gold medal in the 4 x 100m medley.
The team, consisting of Phelps, Matt Grevers, Brendan Hansen and Nathan Adrian took 1st place ahead of Japan in 2nd and Australia in 3rd.
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Every edition has its own story to tell and will be remembered for some truly remarkable performances from sporting legends such as Jesse Owens, Abebe Bikila, Jean-Claude Killy, Nadia Comaneci, Katarina Witt, Michael Phelps and Usain Bolt, to name just a few.
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Swimming Men's 4 x 100m Medley Relay Final Full Replay from the Aquatics Centre at the London 2012 Olympic Games. - 4 August 2012
Swimming has featured on the programme of all editions of the Games since 1896. The very first Olympic events were freestyle (crawl) or breaststroke. Backstroke was added in 1904.
In the 1940s, breaststrokers discovered that they could go faster by bringing both arms forward over their heads. This practice was immediately forbidden in breaststroke, but gave birth to butterfly, whose first official appearance was at the 1956 Games in Melbourne. This style is now one of the four strokes used in competition.
Women's swimming became Olympic in 1912 at the Stockholm Games. Since then, it has been part of every edition of the Games. The men's and women's programmes are almost identical, as they contain the same number of events, with only one difference: the freestyle distance is 800 metres for women and 1,500 metres for men.
Find more about Swimming at www.olympic.org/swimming