The Red Sox had their first game in the American League in 1908.
The first major league, the National Association, started in 1871. The National League's first year was 1876 and the American League's first year was 1901.
The Oakland Raiders joined the National Football League after the merger of the National Football League and American Football League in 1970.
Since 1933, they are one of the first teams in the American Football League.
Forever
The Rockets have played in Houston since 1971 after moving from San Diego.
No, Both American and National league baseball games are 9 innings long
1 year tomorrow. :)
since 1839
The Comets were one of the original teams when the WNBA started in 1997. They won the first four WNBA titles and have won the most WNBA titles of any team in the league.
1995-present
Manchester United have been in the Premier League since its inception in 1992.