Answer . In the United States I would have to say baseball was the most popular sport. It had been running strong since the 1920's. The teams of the 50's were huge. Take your pick... The Brooklyn Dodgers with Jackie Robinson or the Yankees, Red Sox, Cubs, etc. The NBA, NHL, and NFL/AFL were all around but none of which could compete with how big hardball was at the time. It's not called America's past time for nothing.
