number of teams in major sports leagues
The Four Major Sports Leagues Have Very Different Ideas On Geography. Major League Baseball and the National Football League are similar in that both leagues have two major conferences that span from one coast to the other (NL/AL in MLB, AFC/NFC in NFL). But when it comes to dividing the teams, the two leagues have very different ideas on geography. With the Houston Astros moving to the American League West, MLB's 30 teams now form three natural clusters based on how their divisions are defined (East, Central, West)... Wikimedia Commons