The Alliance '90/The Greens (Bündnis 90/Die Grünen), the German Green party, is a political party in Germany whose regional predecessor factions were founded in the late 1970s as a result of the social movements. The party was formally inaugurated on January 17, 1980, by 1,000 delegates in its first convention in Karlsruhe, West Germany, as "Die Grünen". It is one of the oldest, and so far the most politically successful of the world's numerous green parties. In 1989 and 1990 numerous civil rights groups in East Germany combined to form Bündnis 90, which merged with "Die Grünen" in 1993. Bündnis 90/Die Grünen were part of the national coalition government between 1998 and 2005.