The history of the Athletics Major League Baseball franchise spans the period from 1901 to the present day, having begun as a charter member franchise in the new American League in Philadelphia before moving to Kansas City in 1955 for 13 seasons and then to the San Francisco Bay in Oakland, California, in 1968. The team endured numerous attendance issues stemming from the aging Oakland Coliseum before the MLB owners approved the team's application to relocate to Las Vegas, Nevada in 2023. With four locations, the A's have had the most homes of any MLB team.
The Athletics played at Municipal Stadium during their time in Kansas City.
Leo Posada with the 1961 Athletics
Yankees vs. Athletics at Municipal Stadium
Rocky Colavito 1964 Kansas City Athletics Spring Training
American League
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The American League of Professional Baseball Clubs, known simply as the American League (AL), is the younger of two leagues constituting Major League Baseball (MLB) in the United States and Canada. It developed from the Western League, a minor league based in the Great Lakes states, which eventually aspired to major league status. It is sometimes called the Junior Circuit because it claimed Major League status for the 1901 season, 25 years after the formation of the National League.
U.S. President Calvin Coolidge (1872–1933, served 1923–1929), and Washington Senators pitcher Walter Johnson (1887–1946, played 1907–1927, managed 1929–1932 for Senators; managed Cleveland Indians 1933–1935), shake hands following the Senators' 1924 American League championship at Griffith Stadium, Washington, D.C.