Ruth's multitude of home runs proved so popular that the Yankees began drawing more people than their National League counterpart, the Giants.  In 1921—the year after acquiring Babe Ruth—the Yankees played in their first World Series . They competed against the Giants , and all eight games of the series were played in the Polo Grounds. After the 1922 season, the Yankees were told to move out of the Polo Grounds. Giants manager John McGraw was said to have commented that the Yankees should "move to some out-of-the-way place, like Queens", but they instead broke ground for a new ballpark in the Bronx, right across the Harlem River from the Polo Grounds. In 1922, the Yankees returned to the World Series again, and were dealt a second defeat at the hands of the Giants . Important newcomers in this period were manager Miller Huggins and general manager Ed Barrow . The hiring of Huggins by Ruppert in 1918 would cause a rift between the owners that eventually led to Ruppert buying Huston out in 1923.
The Union Association survived for only one season (1884), as did the Players' League (1890), an attempt to return to the National Association structure of a league controlled by the players themselves. Both leagues are considered major leagues by many baseball researchers because of the perceived high caliber of play and the number of star players featured. However, some researchers have disputed the major league status of the Union Association, pointing out that franchises came and went and contending that the St. Louis club, which was deliberately "stacked" by the league's president (who owned that club), was the only club that was anywhere close to major league caliber.