1998 Major League Baseball expansion 1998 Major League Baseball expansion The 1998 Major League Baseball expansion resulted in the establishment of Major League Baseball (MLB)'s 29th and 30th teams beginning play for the 1998 season. After initiating an expansion committee in March 1994, 27 groups representing nine cities submitted bids for the proposed expansion teams. After a yearlong process, on March 9, 1995, the league awarded the National League franchise to Phoenix and the American League franchise to Tampa. The Arizona Diamondbacks and the Tampa Bay Devil Rays (currently the Tampa Bay Rays), would subsequently begin play for the 1998 season. With the successes of
Negro league baseball black baseball, there were only seven leagues that are considered to be of the top quality of play at the time of their existence. None materialized prior to 1920 and by 1950, due to integration, they were in decline. Even though teams were league members, most still continued to barnstorm and play non-league games against local or semi-pro teams. Those games, sometimes approaching 100 per season, did not count in the official standings or statistics. However, some teams were considered "associate" teams and games played against them did count, but an associate team held no place in the league standings.