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
Buenos Aires Grand Prix (motor racing) the exception of the 1956 event held at the General San Martin circuit in Mendoza. Buenos Aires Grand Prix (motor racing) The Buenos Aires Grand Prix was a motor race held in Buenos Aires, Argentina. The event was first held at the Costanera circuit from the early 1930s until 1936 and then continued in 1941 at the Retiro circuit. After a six-year break and General Juan Peron in office, racing resumed at Retiro in 1947 with the start of the South American "Temporada" Grand Prix series to be contested twice a year under Formula Libre regulations. Italian Luigi Villoresi won