Shibe Park, known later as Connie Mack Stadium, was a baseball park located in Philadelphia, Pennsylvania. It was the home of the Philadelphia Athletics of the American League (AL) and the Philadelphia Phillies of the National League (NL). When it opened April 12, 1909, it became baseball's first steel-and-concrete stadium. In different eras it was home to "The $100,000 Infield", "The Whiz Kids", and "The 1964 Phold".