Babe Ruth was a baseball player.
Babe Ruth . His big swing led to escalating home run totals that not only drew fans to the ballpark and boosted the sport 's popularity but also helped usher in the live-ball era of baseball , in which it evolved from a low-scoring game of strategy to a sport where the home run was a major factor . The World Series is the annual championship series of Major League Baseball ( MLB ) in North America , contested since 1903 between the American League ( AL ) champion team and the National League ( NL ) champion team .