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
Metrobus (Buenos Aires) the first Metrobus line to continue out of Buenos Aires into Greater Buenos Aires. with a length of with the intention to reduce congestion in the area with a great affluence of passengers boarding Line D, whilst creating a terminal at the limits of the city at General Paz Highway for passengers from suburbs in Northern Greater Buenos Aires, such as Olivos and Vicente López. This Metrobus line cost an estimated AR$ 265 million ARS to build and will benefit an estimated 200,000 people. Having a feeder service to Line D is something which had been discussed for many years,