The Baltimore Orioles are an American professional baseball team. The Baltimore Orioles are based in the state of Maryland and compete in the Eastern Division of Major League Baseball's American League. The Baltimore Orioles have played their home matches at Oriole Park at Camden Yards. One of the American League's 8 charter franchises, the Baltimore Orioles was established as a major league club in Milwaukee, Wisconsin in 1901. After 52 years in St. Louis, the Browns moved in 1954 and adopted the Baltimore Orioles name.