1968.
Mexico city
1968 in Mexico City
They were first used at the Olympic Games in Mexico in 1968.
The 1968 Olympics were held in Mexico City
There wern't any Olympic games that year. The 1968 games were held in Mexico City, Mexico.
I guess you mean Winter Olympic Games. Yes, Mexico has a team participating every Olympic Games.
Drug tests were first introduced at the Olympic Winter Games in Grenoble and at the Olympic Games in Mexico in 1968.
No, the Olympic Games have never been hosted in Africa. The 2016 games in Rio de Janario will be the first time they will have been held in South America.
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1968
The Olympic Summer Games have been held in Europe, Asia, North America, and Australia. The 2016 games in Rio de Janeiro, Brazil, will be the first held in South America. Neither Africa nor Antarctica has yet hosted the Olympic games. The Olympic Winter Games have been held in Europe, Asia, and North America.
I guess you mean the Summer Olympic Games. Mexico hosted such games in 1968.