Radio broadcasting in Argentina is predated only by radio in the United States, and began on August 27, 1920, when Richard Wagner's "Parsifal" was broadcast by a team of medical students (the "madmen on the roof") led Enrique Susini in Buenos Aires' Teatro Coliseo. Only about twenty homes in the city had a receiver to tune in. The world's first radio station was the only one in the country until 1922, when "Radio Cultura" went on the air; by 1925, there were twelve stations in Buenos Aires and ten in other cities. The 1930s were the "golden age" of radio in Argentina, with live variety, news, soap opera and sport shows.