Hey Batter, Batter! Let’s Watch the All-Star Game! [Video]
In 1933, all 16 professional baseball teams in the major leagues were clustered in the northeast of the country, with St. Louis being the southernmost and farthest west outpost of the national pastime.
That year, the mean center of the U.S. population was in southwestern Indiana, according to the U.S. Census Bureau.
The number of major league baseball teams has almost doubled since then to represent the far corners of the continental U.S., pulled by population growth and migration that puts the U.S.' mean center in south-central Missouri.