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Seattle Mariners The Seattle Mariners are an American professional baseball team based in Seattle, Washington, United States. The Mariners are a member of the Western Division of Major League Baseball's American League. Since July 1999, their home stadium has been Safeco Field; from their 1977 inception until June 1999, the club's home park was the Kingdome. The "Mariners" name originates from the prominence of marine culture in the city of Seattle. They are nicknamed "the M's", a title featured in their primary logo from 1987 to 1992. The current team colors are navy blue, "northwest green" (teal), and metallic silver, after having been royal blue and gold from 1977-1992. Their mascot is the Mariner Moose. An expansion franchise, the Seattle Mariners made their debut in 1977. The organization did not field a winning team until 1991, however, and any real success eluded them until 1995 when they won their first division championship and defeated the New York Yankees in the ALDS.
Office Site of the Seattle Mariners