Changes

for the German  '''Social Democratic Party''' see [[SPD]]

for the German  '''Social Democratic Party''' see [[SPD]]

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>

The party was formed in reaction to the increasingly-[[socialist]] tendencies of the Labour Party, most especially the vote at a Labour conference that massively increased the power of [[trade unions]] in party affairs. <ref name="bbc1"/>

The party was formed in reaction to the increasingly-[[socialist]] tendencies of the Labour Party, most especially the vote at a Labour conference that massively increased the power of [[trade unions]] in party affairs.<ref name="bbc1"/>

The party eventually attracted 28 Labour MPs and one Conservative Party MP to its ranks. Jenkins and Williams, who were both out of Parliament at the time of the SDP's formation, were re-elected in by-elections.

The party eventually attracted 28 Labour MPs and one Conservative Party MP to its ranks. Jenkins and Williams, who were both out of Parliament at the time of the SDP's formation, were re-elected in by-elections.

Later in 1981 the SDP formed an electoral alliance with the [[British Liberal Party|Liberal Party]]. The Alliance fought two elections - 1983 and 1987 - without achieving the breakthrough its members had hoped for. In the General Election of 1983, the party won 26.02% of the electoral vote but won only 23 of 650 seats available. <ref>[http://www.election.demon.co.uk/ge1983.html 1983 General Election Results]</ref> In 1987 the party's share of the vote dropped to 23.09% and it only won 22 seats. <ref>[http://www.election.demon.co.uk/ge1987.html 1987 General Election Results]</ref>

Later in 1981 the SDP formed an electoral alliance with the [[British Liberal Party|Liberal Party]]. The Alliance fought two elections - 1983 and 1987 - without achieving the breakthrough its members had hoped for. In the General Election of 1983, the party won 26.02% of the electoral vote but won only 23 of 650 seats available.<ref>[http://www.election.demon.co.uk/ge1983.html 1983 General Election Results]</ref> In 1987 the party's share of the vote dropped to 23.09% and it only won 22 seats.<ref>[http://www.election.demon.co.uk/ge1987.html 1987 General Election Results]</ref>

To alleviate growing tensions between the party leaders, a merger was agreed in 1988 to form the [[Liberal Democrats]]. A handful of Liberals, centered around the Leeds West MP Michael Meadowcroft, declined to merge and kept a small rump Liberal Party in existence, while David Owen and two other MPs maintained a 'continuation' SDP, which, however, was dissolved in 1990.

To alleviate growing tensions between the party leaders, a merger was agreed in 1988 to form the [[Liberal Democrats]]. A handful of Liberals, centered around the Leeds West MP Michael Meadowcroft, declined to merge and kept a small rump Liberal Party in existence, while David Owen and two other MPs maintained a 'continuation' SDP, which, however, was dissolved in 1990.