Babe Ruth first sixteen World Series, those played between 1903 and 1919, would not win another pennant until 1946, or another World Series until 2004, a drought attributed in baseball superstition to Frazee's sale of Ruth and sometimes dubbed the "Curse of the Bambino". The Yankees, on the other hand, had not won the AL championship prior to their acquisition of Ruth. They won seven AL pennants and four World Series with Ruth, and lead baseball with 40 pennants and 27 World Series titles in their history. When Ruth signed with the Yankees, he completed his transition from a pitcher to a
Major League Baseball with the Major League clubs. With the World Baseball Softball Confederation, MLB manages the international World Baseball Classic tournament. Baseball's first openly all-professional team was founded in Cincinnati in 1869. (There had been teams in the past that paid some players, and some that had paid all players but under the table.) The first few decades of professional baseball were characterized by rivalries between leagues and by players who often jumped from one team or league to another. The period before 1920 in baseball was known as the dead-ball era; players rarely hit home runs during this time. Baseball survived