After the 1960 season, the Washinton Senators left the capital & headed west, becoming this new team
[DOC] [TLE] Griffith Stadium - history, photos and more of the Washington ... [PAR] Aerial of Griffith Stadium, former home of the Washington Senators ... After the 
1899 season the Washington baseball team was contracted, but ... On April 12, 
1911, the new ballpark, named National Park, was partially completed as the 
Senators ... left after the 1960 season, Major League Baseball awarded 
Washington, DC... [DOC] [TLE] Minnesota Twins on Baseball Almanac [PAR] Their original team, the Washington Senators, played in the National League ... 
To top it off, the team moved to Minnesota in 1961 to become the Twins.