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 the railways, taking passengers from Plaza de Mayo to the Retiro Terminal, where it connected to the Buenos Aires Northern Railway. A second similar horse-drawn feeder service was established between Monserrat and the Constitución railway terminal in 1866 to service the Buenos Aires Great Southern Railway. The first urban tramways were inaugurated in 1870 by Argentine pioneer Federico Lacroze and his brother Julio. These two lines were the Lacroze brothers' Central Tramway ("Tramway Central") and the Méndez brothers' "Tramway 11 de Septiembre", which both ran parallel from Plaza de Mayo westwards to Plaza Miserere, currently the home of Once de