The Athletics franchise, established in 1901 as a charter member of the American League, is one of the most successful, storied, and well-traveled organizations in Major League Baseball history. Across 126 seasons of baseball, the franchise has claimed 9 World Series championships, capturing the third-most titles in MLB history behind only the New York Yankees and St. Louis Cardinals. The A's hold the unique distinction of having had four distinct home locations, the most of any MLB team.