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  1896
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  April at Athens,Greece. the country that had the most gold was USA
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  1940 and 1944 because of the world war. 1916 because of war.
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  The total cost of Beijing Olympics is around 43 billion USD
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  1904 in St. Louis, Missourri
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  Rio 2016 will be the first time in Olympic history that a South American country has hosted the Games
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  14 million meals will be served
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  45,000 volunteers.
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  A record 10,651 athletes
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  a record 197 nations competed
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  While Germany competed under one flag for the first time since 1964