It was in the New York City area in the mid-nineteenth century that various pitching styles were invented, developments that changed baseball history. In 1883, the Giants became a powerhouse, hiring the finest pitchers in the country. In the twentieth century, the talent pool kept changing, but the quality did not. Christy Mathewson, ,Iron Man, McGinnity, and Rube Marquard all won more than two hundred games in the majors, and each played a part in many pennant victories for John McGraw,s Giants. In 1921, the Yankees won their first championship, and their domination of the American League that followed was unprecedented. Pitching was both effective and exciting for New York fans, whether in Yankee Stadium or the Polo Grounds. New York Aces: The First 75 Years covers the history of pitching in the Big Apple, with equal attention to the American League and National League franchises.