 Complete the following phrase:  Construction began in February 1937 and the stadium was inaugurated on December 3, 1938. The architecture was based on the Olympiastadion in Berlin, Germany. The stadium was one of the venues for the FIFA World Cup in 1962, and hosted the final where Brazil defeated Czechoslovakia 3-1. In 1948, the stadium hosted the matches of the South American Championship of Champions, the competition that inspired the creation of the UEFA Champions League and of the Copa Libertadores. The stadium was notoriously used as a mass imprisonment, torture, and extrajudicial execution facility by the Pinochet dictatorship following the 