The
Baltimore Orioles are an American professional
baseball team based in
Baltimore,
Maryland. The Orioles compete in
Major League Baseball (MLB) as a member of the
American League (AL)
East division. One of the AL's eight charter franchises when the league was established in 1901 with President
Ban Johnson; this particular franchise spent its first year as a major league club in
Milwaukee, Wisconsin as the
Milwaukee Brewers before moving to
St. Louis, Missouri to become the
St. Louis Browns. After 52 often-beleaguered years in St. Louis, the franchise was purchased in November 1953 by Baltimore business interests led by Clarence Miles. The franchise officially moved to Baltimore for the 1954 season and adopted the historic "Orioles" name in honor of the
official state bird of Maryland. The Orioles name had also been used by several previous major and minor league baseball clubs in Baltimore, including the franchise that would eventually become the
New York Yankees.
Nicknames for the team include the
"O's" and the
"Birds".