The Andra kammaren (lit. Second Chamber), was the lower house of the bicameral Riksdag of Sweden between 1866 and 1970 that replaced the Riksdag of the Estates. The upper house was the Första kammaren. At the time of its abolition the chamber had 233 members, who were elected for four-year terms of office. Both chambers had the same powers. At the last general election in 1968, the Social Democrats received more than half the votes.