1998 Major League Baseball expansion the American League. Following that transaction, MLB consequently altered its season structure so as to include interleague play throughout the regular season. 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
Independent baseball league Independent baseball league An independent baseball league is a professional baseball organization located in the United States and Canada that is not operated in conjunction with either a Major League Baseball team or an affiliated Minor League Baseball team. Being independent allows teams to be located close to major league teams without their consent. Such leagues have been around for many years and were once known as "outlaw leagues" due to their position outside the rules of affiliated minor league baseball. The Northern League and Frontier League both started play in 1993, and the Northern League's success paved the way