The party arose after the
Velvet Revolution, in January 1990, and declared that it will attempt to continue the work of the "
Slovak Social Democratic Party of the Kingdom of Hungary" (1905–1918) and of other social democratic parties forbidden in 1948 by the Communists. Most of the time it failed to win seats in elections. In 1992 the party gained five seats (6.1% of the votes in Slovakia) in the "House of Nations" (Sněmovna národů) of the federal parliament of
Czechoslovakia, which however was only because the party chairman was briefly
Alexander Dubček, the ex-Czechoslovak leader, in 1992. Prior to his early death in November 1992, he was one of their MPs in the federal parliament. ==Independent Slovakia (from 1993)==