The Olympic Games, the Asian Games and the individual World Championships are awarded the winners gold medals, silver medals and bronze medals. However, a long time ago, the winners of sports competitions won the reward, but is a olive tree laurel branches woven into the circle, that is, "laurel." In 1465, a gold medal was awarded to the winner of the Triple Project at a recreation in Zurich, Switzerland. This may be the first time that the winner has not been given the title. The winners of the first Olympic Games in 1895 received such "Laurel".
It was not until 1907 that the IOC made a formal decision to award gold, silver and bronze medals to the Olympic winners at the executive Committee in The Hague, Netherlands, and began its implementation at the upcoming 4th London Olympic Games.
Since the 8th session of the Paris Olympics in 1924, the IOC has further made the following supplementary decision: Winners are awarded a Certificate (award) in addition to medals.
The decision on the gold medal, silver medal, bronze medal design, production made specific provisions: one or two, the third prize of the medal diameter is not less than 60 mm, thickness of 3 mm. Among them, the first prize (gold medal) and the second Prize (silver) medals made of silver, its purity (including silver) is not less than 92.5%, the first prize medal (gold) surface at least 6 grams of gold plated. These rules have been used since the 9th Olympic Games in Amsterdam in 1928.