The '''Social Democratic Party''' (SDP) was a British center-left political party of the 1980s. It was formed in 1981 by four senior right-wing [[Labour Party]] [[MP]]s or ex MPs - [[Roy Jenkins]], [[Shirley Williams]], [[David Owen]] and [[Bill Rodgers]], known at the time as the Gang of Four.<ref name="bbc1">[http://news.bbc.co.uk/onthisday/hi/dates/stories/january/25/newsid_2506000/2506367.stm BBC News, "On This Day" 25 January 1981]</ref> | The '''Social Democratic Party''' (SDP) was a British center-left political party of the 1980s. It was formed in 1981 by four senior right-wing [[Labour Party]] [[MP]]s or ex MPs - [[Roy Jenkins]], [[Shirley Williams]], [[David Owen]] and [[Bill Rodgers]], known at the time as the Gang of Four.<ref name="bbc1">[http://news.bbc.co.uk/onthisday/hi/dates/stories/january/25/newsid_2506000/2506367.stm BBC News, "On This Day" 25 January 1981]</ref> |