To view nbcolympics.com fully make sure you have Macromedia Flash Player version 7 or higher. Click here to download.
The Games of the XXIX Olympiad will draw more than 10,000 competitors representing 205 nations, an increase of four from the Athens Games.
At the first Modern Olympics in 1896, a total of 14 nations competed, including the United States, Australia, Chile and 11 European countries.
