* 1991 – Takako Doi, chair of the Social Democratic Party, becomes Japan's first female speaker of the House of Representatives.

The present Mayor is Élio Manuel Delgado da Maia, elected by a coalition between the Social Democratic Party and the Democratic Social Centre.

The Social Democratic Party ( SPD ) and The Left ( Die Linke ) took control of the city government after the 2001 state election and won another term in the 2006 state election.

After the 2011 state election, there is a coalition of the Social Democratic Party with the Christian Democratic Union, and for the first time ever, the Pirate Party won seats in a state parliament in Germany.

| Social Democratic Party

Lula's Workers ' Party tends to the statist nationalism side, although there are privatizing forces within his party and government, while Cardoso's Social Democratic Party tends to favor the international private market side by taking neoliberal policies.

In 1981, defectors from the moderate wing of the Labour Party, led by former Cabinet ministers Roy Jenkins, David Owen and Shirley Williams, founded the Social Democratic Party.

The Social Democratic Party ( SDP ) was a centrist political party in the United Kingdom that was created on 26 March 1981 and existed until 1988.

Many original members of the future Social Democratic Party had been members of the Manifesto Group within the Labour Party.

Democratic, Democratic Labour, and Radical were all mentioned as possible names for the new party, as well as New Labour ( which future Labour leader Tony Blair would use to promote the Labour Party more than a decade later ) but eventually Social Democratic was settled on because the ' Gang of Four ' consciously wanted to mould the philosophy and ideology of the new party on the Social Democracy practised on mainland Europe.

Much of the party's initial membership came from the Social Democratic Alliance.

de: Social Democratic Party ( Vereinigtes Königreich )

sv: Social Democratic Party

The Bolsheviks, originally also Bolshevists (; derived from bol ' shinstvo, " majority ") were a faction of the Marxist Russian Social Democratic Labour Party ( RSDLP ) which split apart from the Menshevik faction at the Second Party Congress in 1903.

In the 2nd Congress of the Russian Social Democratic Labour Party, held in Brussels and London during August 1903, Lenin and Julius Martov disagreed over the membership rules.

As a result, they ceased to be a faction in the RSDLP and instead declared themselves an independent party, called Russian Social Democratic Labour Party ( bolsheviks )-or RSDLP ( b ).

* 1944 – Forces of the Communist-controlled Greek People's Liberation Army attack the smaller National and Social Liberation resistance group, which surrenders.

Government ministers are from the Social Democratic Party of Croatia ( SDP ), and the Croatian People's Party-Liberal Democrats ( HNS ) and Istrian Democratic Assembly ( IDS ).

Luxembourg's major conservative party, the Christian Social People's Party ( CSV or PCS ) was formed as the Party of the Right in 1914, and adopted its present name in 1945.

In that election five regionalist parties got seats: the Social Democratic and Labour Party ( SDLP ) of Northern Ireland, the Scottish National Party ( SNP ), the Flemish People's Union ( VU ), the Walloon Democratic Front of Francophones ( FDF ) and the South Tyrolean People's Party ( SVP ).

After 1944 Communists were a factor to consider for a few decades, and the Finnish People's Democratic League, formed by Communists and others to the left of Social Democrats, even was the largest party after 1958 elections.

The war was fought from 27 January to 15 May 1918 between the forces of the Social Democrats led by the People's Deputation of Finland, commonly called the " Reds " (, ), and the forces of the non-socialist, conservative-led Senate, commonly called the " Whites " (, ).

In domestic policy the People's Delegation sought socialism based on the Finnish Social Democratic ethos ; their vision of democratic socialism for the country differed sharply from Lenin's dictatorship of the proletariat.

President Bakiyev was widely expected to retain his mandate, while the opposition United People's Movement ( OND ) announced on 20 April 2009 that it would field a single candidate – Social Democratic Party leader Almaz Atambayev.

Since the end of World War II, the Christian Social People's Party ( CSV ) has usually been the dominant partner in governing coalitions.

The People's Great Khural first met on 3 September and elected a president ( MPRP ), vice president ( SDP — Social Democrats ), prime minister ( MPRP ), and 50 members to the Baga Khural ( small Khural ).

Social resistance to the policies of Marxist-Leninist regimes in Eastern Europe accelerated in strength with the rise of the Solidarity, the first non-communist controlled trade union in the Warsaw Pact that was formed in the People's Republic of Poland in 1980.

* The Palestinian People's Party ( PPP ) – Ex-communist, Social Democratic, non-militant

In 2011, the socialist parties of Social Democrats, Socialist People's Party and the Danish Social Liberal Part formed government, after a slight victory over the liberal parties.

From 1959, the Federal Council, elected by the parliament, is composed of members of the four major parties, the Protestant Free Democrats, the Catholic Christian Democrats, the left-wing Social Democrats and the right-wing People's Party, essentially creating a system without a sizeable parliamentary opposition ( see concordance system ), reflecting the powerful position of an opposition in a direct democracy.

From 1959 to 2003 the Federal Council was composed of a coalition of all major parties in the same ratio: 2 each from the Free Democratic Party, Social Democratic Party and Christian Democratic People's Party and 1 from the Swiss People's Party.

The five parties represented in the Federal Council are generally called the government parties: Free Democratic Party, Social Democratic Party, Christian Democratic Party, Swiss People's Party, and Conservative Democratic Party of Switzerland.

Since 1959 the seven-seat cabinet had comprised 2 Free Democrats, 2 Christian Democrats, 2 Social Democrats, and 1 Swiss People's Party, but in 2004, the Swiss People's Party took one seat from the Christian Democrats.

Two major entities contested the election: the incumbent PNM, and a coalition called the People's Partnership, comprising the UNC, COP, TOP ( Tobago Organisation of the People ), and two labour and non-governmental organisations: the National Joint Action Committee and the Movement for Social Justice, led by UNC leader Kamla Persad-Bissessar.

Nevertheless, during Kekkonen's presidency, a few parties were represented in most governments — mainly the Centrists, Social Democrats and Swedish People's Party — while the People's Democrats and Communists were often in government from 1966 onwards.

That year, he was supported by five political parties: the Centre Party, the Social Democrats, the Social Democratic Union of Workers and Smallholders ( a short-lived SDP faction ), the Finnish People's Democratic League ( a communist front ), and the Swedish People's Party.

National Alliance, launched in 1994, was officially founded in January 1995, when the Italian Social Movement ( MSI ), the former neo-fascist party, merged with conservative elements of the former Christian Democracy, which had disbanded in 1994 after two years of scandals and various splits due to corruption at its highest levels, exposed by the Mani Pulite investigation, and the Italian Liberal Party, disbanded in the same year.

A group of Liberal opponents of the merger with the Social Democrats, including Michael Meadowcroft ( formerly Liberal MP for Leeds West ) and Paul Wiggin ( who served on Peterborough City Council as a Liberal ), continued under the old name of " the Liberal Party ".

The current Senate composition is as follows: 20 seats are held by the Coalition of Parties for Democracy ( CPD ): Six Christian Democrats ( PDC ), eight Socialists ( PS ), three Party for Democracy ( PPD ) and three Social Democrat Radical Party ( PRSD ); 17 by the Alliance for Chile ( APC ): nine Independent Democratic Union ( UDI ) and eight National Renewal ( RN ); and one independent leaning right.

* The RSDLP was formally split in 1912, Henceforth, the Bolshevik faction was known as Russian Social Democratic Labour Party ( bolsheviks ), RSDLP ( b ) (), РСДРП ( б )).

The party was founded in September 1988 under the name " Social Party for Progress " (), but was renamed in October 1993 to reflect its liberal ideology.

The Social Democratic Party of Croatia (), commonly referred to in Croatia as simply the Social Democratic Party ( Socijaldemokratska partija or SDP for short ), is a social democratic political party and the largest centre-left political party in Croatia.

The same year, the party was renamed to Social Democratic Renewal (), maintaining the same acronym, SDP.

Giovanni Berlinguer (), Cavaliere di Gran Croce OMRI ( born 9 July 1924 ), is an Italian politician and Professor of Social Medicine.

Paulo de Sacadura Cabral Portas ( born 12 September 1962 ), known as Paulo Portas (), is a Portuguese politician and party leader of the Democratic and Social Centre – People's Party ( CDS-PP ).

Leung Kwok-hung ( born 27 March 1956 in Hong Kong ), also known as Long Hair (), is a member of the Legislative Council of Hong Kong ( representing the New Territories East constituency ), a founding member of the League of Social Democrats and a democratic political activist.

The Social Democrat Hunchakian Party ( SDHP ) (), is the oldest Armenian political party and was the first Socialist party in the Ottoman Empire and in Persia.

The Fafo Research Foundation, also known as the Fafo Foundation or just Fafo (), is a Norwegian research foundation, consisting of two research institutes: The Fafo Institute for Labour and Social Research and the Fafo Institute for Applied International Studies.

Latin University of Costa Rica (), commonly called ULatina, is the largest private university in Costa Rica, with more than 16, 000 students enrolled in undergraduate and graduate programs in Business, Education, Engineering, Health Sciences, and Social Sciences.

The Social Democratic Party of Ukraine ( united ) or SDPU ( u ) or SDPU ( o ) (), is a Ukrainian political party.

The Social Democratic Party (), ( SDP ) was a social democratic political party in Serbia.

Mezhraiontsy or Mezhraionka (), usually translated as the interdistrictites ( from the Russian " mezh -", i. e. " inter -", and " raion ", i. e. " district "), officially RSDRP ( Internationalists ), was a small Petrograd-based group within the Russian Social Democratic Labor Party, which existed between 1913 and 1917.

Alexander Lvovich Parvus (), born Israel Lazarevich Gelfand ( September 8, 1867, Berazino – December 12, 1924, Berlin ), was a Marxist theoretician, a Russian revolutionary, and a controversial activist in the Social Democratic Party of Germany.