Pan American Games Aires in 1940, the participants decided that the first games should be held in Buenos Aires in 1942. The plans had to be postponed because of World War II. A second Pan American Sports Congress held in London during the 1948 Summer Olympics reconfirmed Buenos Aires as the choice of host city for the inaugural games, which were held in 1951. The games offered 18 sports. Countries that were part of the Commonwealth of Nations such as Canada did not compete at the first Pan American Games. The second games were held in Mexico City, Mexico. Competitions started on March
Trams in Buenos Aires in the city of La Plata, south of Buenos Aires. Buenos Aires would not receive its first electric trams until 1897 when the North American engineer Charles Bright and the Argentine engineer Juan Mallol opened their "Buenos Ayres Electric Tramway" and "Tramways La Capital" lines in the city. These vehicles operated at 30kph, which was considered to be extremely fast for the time and led a journalist writing about an initial voyage to refer to the electric tram as ""a furious vehicle that eats up the ground with its frightening speed"". By 1914, the last of the horse-drawn trams were