Mexico City 1968
The official emblem for the Mexico City 1968 Summer Games is a combination of the Olympic rings and the year. It is based on the patterns of the Huichole Indians.
The high altitude led to some incredible performances. World records were broken in all of the men's athletics races that were 400m or shorter, as well as the long jump and triple jump.
The Games represented a number of firsts. Wyomia Tyus became the first person to defend the 100m crown. The athletics track was made of a new synthetic material- tartan, and electronic and manual timing were used together. It was also the first time winners had to undergo doping testing.