The first All-Star Game was held as part of the 1933 World's Fair in Chicago, Illinois
Jackie Robinson makes debut
Jackie Robinson breaks the color barrier by being the first player to play in the Major Leagues. This move brought attedence of Afican Americans.
The Era of Expansion and Realignment
During this period several teams either joined one of the leagues or relocated
Building of Multi-purpose Stadiums
During this time period the NFL was gaining in popularity so baseball owners decided as they expanded or joined the league that they would build multi-purpose stadiums to house more than one sport at a time.
First Year of the MLB Draft
The first MLB Draft is held. The June Regular and the August Legion
Designated Hitter Rule
the American League, which had been suffering from much lower attendance than the National League, sought to increase scoring even further by initiating the designated hitter (DH) rule
The Leagues Merge
The American League and The National League merge together
Launch of MLB Network
The MLB Network was broadcast for the first time in over 50 million homes