Based in Baltimore, Maryland, the Baltimore Orioles are a professional baseball team. They are the membership holder of the Eastern Division of Major League Baseball's American League. Since the year 1992, the Baltimore Orioles home games are played at Oriole Park at Camden Yards. The "Orioles" refers to the official state bird of Maryland. Nicknames of the team include the O's and the Birds.
One of the American League's eight certified franchises, it was recognized as a major league club in Milwaukee, Wisconsin in the year 1901. The Milwaukee Brewers, in the beginning as they were originally known, moved to St. Louis in the year 1902 and became the St. Louis Browns. Before travelling to Baltimore the Browns spent 52 years in St. Louis, the Browns travelled to Baltimore in the year 1954 and acquired the name Orioles, which had been used by prior Baltimore baseball clubs. In the year1902 they moved to St. Louis, where they became the "Browns," in reference to the original name of the 1880s club that by 1900 was known as the Cardinals. They even built a new park on the site of the old Browns' prior home, Sportsman's Park. In spite of this the Browns usually fielded terrible or mediocre teams (they had just four winning seasons from the year 1902 to 1922), they were very popular at the gate during their first twenty year in St. Louis.