People of the Revolution and the USSR

Social Democratic Party of Germany (SPD) Non-Bolshevik socialists 1826–1900 ○ Natural causes

Co-founder of the Eisenach party and drafter of the Gotha Programme

"Nobody has combatted State Socialism more than we German Socialists, nobody has shown more distinctively than I, that State Socialism is really State capitalism!" — 'Our Recent Congress' (1896)

Born in Giessen, he joined the risings of 1848 and fled by way of Switzerland to London, where he spent twelve years as a close associate of Marx and Engels. In 1869 he founded the Social Democratic Workers' Party with August Bebel at Eisenach; arrested for opposing war credits, he was convicted at the Leipzig treason trial of 1872. He was the man who brought off the Gotha unity congress of 1875 and drafted its programme, the document Marx took apart line by line. From 1890 until his death he edited the party paper Vorwärts. He was the father of Karl Liebknecht.

Social Democratic Party of Germany (SPD) Non-Bolshevik socialists 1840–1913 ○ Natural causes

Co-founder of the SPD who led the German workers' movement for over 40 years, the 'shadow emperor' of the working class

"The struggle in Paris is only a small outpost skirmish; the main affair in Europe is still ahead of us. Before a few decades have passed, 'War on the palaces, peace to the cottages' will become the battle cry of the entire European proletariat." — Reichstag, 25 May 1871

A woodturner's apprentice who co-founded the Social Democratic Workers' Party with Wilhelm Liebknecht in 1869 and, through the Gotha unity congress of 1875, built the SPD into the world's largest socialist party. Under the Anti-Socialist Laws (1878–1890) he ran the illegal party paper from Zurich exile and held the underground organisation together; he steered the adoption of the Erfurt Programme (1891), which became the Marxist benchmark for European social democracy, and led the orthodox defence against Eduard Bernstein's revisionism. His Woman and Socialism (1879) ran through over fifty editions as the founding text of socialist feminism, and his funeral in 1913 drew the leaders of the Second International.

French Workers' Party (POF) Non-Bolshevik socialists 1842–1911 ✕ Suicide

Marx's son-in-law, author of The Right to Be Lazy, first socialist deputy in the French parliament

"Healthy in body and mind, I end my life before pitiless old age which has taken from me my pleasures and joys one by one." — Suicide letter, 25 November 1911

French Marxist theorist born in Cuba. Co-founded the French Workers' Party (POF) with Jules Guesde and systematized economic determinism as a historical method. In his later years, defended revolutionary Marxism against Jean Jaurès's reformism.

France state institutions Non-Bolshevik socialists 1845–1922 ○ Natural causes

Veteran founder of French Marxist socialism who entered the Union sacrée government in 1914

After war began in 1914, Guesde left the socialist antiwar camp and entered the French government as minister without portfolio. At Stuttgart in 1907 he had rejected special antiwar measures apart from the socialist struggle; wartime office brought that position into government practice.

A journalist exiled for supporting the Paris Commune, he drafted the programme of the French Workers’ Party with Marx in 1880 and became the standard-bearer of French Marxism. He long opposed the reformist Jaurès and took part in founding the unified Socialist Party (SFIO) in 1905. At Stuttgart in 1907 he argued that class struggle would abolish war and that no special anti-war action was needed. In August 1914, seeing France itself in danger, he joined the Union sacrée government as a minister without portfolio and stayed until 1916.

Socialist Revolutionary Party (PSR/SR) Non-Bolshevik socialists 1850–1919 ○ Natural causes

The great unifier of the Russian revolutionary movement, from the Chaikovtsy to the Left SRs

'I have complete discord with Lenin... I no longer believe in Lenin' — in 1919, on the eve of exile, breaking with the Bolsheviks after half a century of shared struggle.

Mark Natanson was a pivotal organizer who built the institutional backbone of the Russian revolutionary movement across half a century: co-founding the Circle of Tchaikovsky, Land and Liberty, and the People's Rights Party, and serving on the Central Committee of the Socialist Revolutionary Party. Known as the 'Ivan Kalita of the revolution' for his talent in unifying dispersed circles, he stood with Lenin as an internationalist at the Zimmerwald and Kienthal conferences during the First World War. In 1917 he led the formation of the Left SRs and later the Party of Revolutionary Communism, backing the Bolsheviks through the October Revolution, but grew disillusioned as the regime turned toward one-party dictatorship, leaving the words 'I no longer believe in Lenin' before fleeing into exile.

Russian Social Democratic Labour Party (RSDLP) Non-Bolshevik socialists 1850–1928 ○ Natural causes

Theorist of the mass workers' party: the argument that lost to Lenin's vanguard

Trotsky recalled: 'An atmosphere of simplicity and sincere comradely participation reigned in the Akselrod household.'

A former narodnik, he co-founded the Emancipation of Labour group (1883) with Plekhanov and Zasulich, the first Russian Marxist organisation. As an Iskra editor (1900) and, after the 1903 RSDLP split, the central theoretician of Menshevism, he argued for a mass, democratic workers' party against Lenin's vanguard model. He served on the Petrograd Soviet executive in 1917 but opposed the October Revolution and spent his final decade in exile, active in the Second International.

Non-Bolshevik socialists 1852–1918 ○ Natural causes

Founder and leader of Austrian Social Democracy who could not stop the war in 1914 and backed it

In January 1918 he urged strikers in Lower Austria and Vienna to return to work. Elected foreign minister by German Austria’s provisional assembly on 30 October, he oversaw the end of hostilities with the Entente and died on 11 November.

Born to a Jewish family in Prague, a physician turned socialist by the misery of Vienna’s workers, he united the Austrian Social Democratic Workers’ Party at the Hainfeld congress of 1889 and led it as a “little International” inside a multinational empire. At the Brussels Bureau meeting of July 1914 he confessed that “the war is already with us” and that his party was powerless, and despite private misgivings backed the government’s war. He became foreign minister of the provisional government in October 1918 but died on 11 November, a day before the republic was proclaimed.

Labour Party (United Kingdom) Non-Bolshevik socialists 1856–1915 ○ Pneumonia

Former miner who founded the British Labour Party and opposed the First World War to the end, urging an anti-war general strike

Elected to Parliament in 1892 after organising miners, Hardie helped lead the Independent Labour Party and the new Labour movement. At the outbreak of the First World War, he campaigned against the conflict.

Born into poverty in Scotland and working in the pits from about the age of ten, he rose as a miners’ organiser to become in 1892 the first working-class member of parliament. He founded the Independent Labour Party in 1893 and became Labour’s first parliamentary leader in 1906, supporting women’s suffrage and Indian self-rule. At Copenhagen in 1910 he proposed a general strike in the arms industries to prevent war. He attended the Brussels Bureau meeting of July 1914 and opposed the war until his death in 1915.

Russian Social Democratic Labour Party (RSDLP) Non-Bolshevik socialists 1856–1918 ○ Natural causes

The father of Russian Marxism: against his own pupils’ revolution

After the October 1917 seizure of power, Plekhanov said: "Russian history has not yet ground the flour from which the wheat pie of socialism will be baked."

He began as a Populist and transplanted Marxism into Russia: Lenin’s whole generation learned from his books. But returning in 1917 after thirty-seven years abroad, he condemned the October rising as premature, a violation of history’s stages. He died of tuberculosis under the regime his pupils had built, and his funeral became a half-opposition demonstration.

French Section of the Workers' International (SFIO) Non-Bolshevik socialists 1859–1914 ✕ Assassinated

French socialist leader who united the left, founded L'Humanité, and was assassinated fighting to prevent the Great War

"In the vat of the Republic, prepare the wine of the Social Revolution!" — to winegrowers at the Maraussan cooperative, 1 May 1905

Jean Jaurès was the central figure in the unification of French socialism, leading the French Socialist Party from 1902 and merging it with Jules Guesde's revolutionary Socialist Party of France in 1905 to create the French Section of the Workers' International (SFIO). Through L'Humanité, the daily he founded in 1904, he championed reformist social democracy, while during the Dreyfus Affair he stood as the republican conscience against anti-Semitism and militarism. His Marxist class analysis in the multi-volume Socialist History of the French Revolution (1900–1903) left a lasting mark on French revolutionary historiography. In July 1914, he fought to prevent world war through an international general strike with the German Social Democrats, but was assassinated by nationalist Raoul Villain three days before France entered the conflict.

Independent activity Non-Bolshevik socialists 1861–1920 ○ Natural death

German trade-union leader who signed the 1918 agreement with Stinnes and met the Kapp Putsch of 1920 with a general strike

Born in Marienburg, he grew up in an orphanage and became a wood turner. He joined the Social Democrats in 1885, chaired the General Commission of the German Trade Unions from 1890, and sat in the Reichstag in 1893–1898 and 1903–1920. In 1913 he became the first President of the International Federation of Trade Unions. He led the SPD’s right wing, and in the First World War supported the civil truce and the renunciation of strikes. On 15 November 1918 he signed an agreement with Hugo Stinnes under which employers for the first time accepted the unions as workers’ representatives, with the eight-hour day and works councils, while the unions rejected the radical socialists’ demands. In 1919 he became chairman of the new General German Trade Union Federation (ADGB), and in March 1920 he organised the general strike against the Kapp Putsch. He died in Berlin later that year.

French Section of the Workers' International (SFIO) Non-Bolshevik socialists 1862–1922 ○ Natural death

French Socialist deputy who joined the Union sacrée government as Minister of Public Works in 1914

Born in Bonnières-sur-Seine in Seine-et-Oise, he took a doctorate in law and practised as a lawyer, and as a journalist edited La Petite République. He joined the Blanquist-leaning Central Revolutionary Committee and followed its successor parties into the SFIO in 1905. From 1893 until his death he was re-elected as a Socialist deputy for a working-class district in the 18th arrondissement of Paris. Author of the 1911 pacifist pamphlet Faites un roi, sinon faites la paix, he nevertheless entered Viviani’s Union sacrée government in August 1914 as Minister of Public Works, and kept the post under Briand until December 1916. At the Congress of Tours in 1920 he voted against joining the Third International. He died of a cerebral haemorrhage in Chamonix in 1922.

Social Democratic Party of Germany (SPD) Non-Bolshevik socialists 1863–1919 ✕ Assassinated

Lawyer who founded the USPD against the war and co-chaired the Council of People’s Deputies with Ebert in 1918

After Ebert’s government bloodily suppressed the revolutionary Volksmarinedivision in December 1918, Haase and fellow USPD delegates resigned from the Council of the People’s Deputies in protest.

Born to a Jewish family in East Prussia, he made his name as a lawyer defending socialists and in 1911 became SPD co-chairman alongside Bebel. In August 1914 he opposed war credits but had to read the party’s statement in their favour in the Reichstag. In 1917 he founded the Independent Social Democratic Party (USPD) with the war’s opponents. In November 1918 he co-chaired the Council of People’s Deputies with Ebert, leaving the government after the Christmas crisis. Shot outside the Reichstag in October 1919, he died in November.

Labour Party (United Kingdom) Non-Bolshevik socialists 1863–1935

British Labour organizer and politician who led the international disarmament effort.

Henderson worked as an iron foundryman and became active in the trade-union movement. He helped establish the Labour Representation Committee in 1900, chaired the conference that formed the Labour Party in 1906, and served as party secretary from 1911 to 1934, building its organization and broadening its base. He was president of the Board of Education in 1915–16, home secretary in 1924, and foreign secretary from 1929 to 1931. Elected president of the League of Nations Disarmament Conference in 1932, he pursued international negotiations even as the conference ultimately failed; his work for peace and disarmament earned him the 1934 Nobel Peace Prize.

Mensheviks (RSDLP) Non-Bolshevik socialists 1864–1926 ✕ Suicide

Chairman of the Petrograd Soviet in the dual-power era, face of revolutionary defencism

"Deprived of direct contact with his people, he lost his power of resistance. Even a mighty oak, overturned by a storm and torn from the soil that fed it, withers. So it was with Chkheidze." — Irakli Tsereteli at his funeral, 1926

A Georgian nobleman and Menshevik who produced the first Georgian translation of the Communist Manifesto. In 1917 he chaired the Petrograd Soviet during dual power but opposed the October Revolution; he went on to lead Georgia's independence and its government-in-exile in Paris.

Labour Party (United Kingdom) Non-Bolshevik socialists 1866–1937 ○ Natural causes

Politician who gave up the Labour chairmanship in 1914 over war credits and later became Britain’s first Labour prime minister

He resigned as Labour chairman in 1914 over Britain’s entry into the war and war spending; in 1931 he led a national government and lost Labour’s support.

Born into poverty in Lossiemouth, Scotland, he became an organiser of the Independent Labour Party and Labour and was chairman of the party from 1911. When Labour backed the government’s war credits in August 1914 he resigned the chairmanship and was fiercely attacked for his opposition to the war. In 1924 he became Britain’s first Labour prime minister and recognised the Soviet Union, returning as prime minister in 1929. Forming a National Government with the Conservatives in the crisis of 1931, he was expelled from Labour. He died at sea in 1937.

Belgium state institutions Non-Bolshevik socialists 1866–1938 ○ Natural causes

Chairman of the International Socialist Bureau who led the Second International and joined Belgium’s wartime government in 1914

At the 1919–20 Paris Peace Conference, he secured treaty clauses favouring labour, including an eight-hour day. As Belgium’s foreign minister, he helped negotiate the 1925 Pact of Locarno.

A leader of the Belgian Labour Party and a jurist, he chaired the International Socialist Bureau from 1900 and became the face of the Second International. When Germany invaded neutral Belgium in August 1914 he entered the government as minister of state and backed national defence, trying to hold the Bureau together against the Zimmerwald movement. After the war he served as justice and foreign minister, signing the Locarno treaties in 1925, and chaired the Labour and Socialist International from 1923.

Georgia state institutions Non-Bolshevik socialists 1868–1953 → Died in exile

Leader of the Georgian Mensheviks who headed the government of the Democratic Republic of Georgia in 1918–1921

Born in Guria, western Georgia, in 1868, he took up Marxism at the Warsaw Veterinary Institute and in the 1890s led Mesame Dasi, Georgia’s first legal Marxist organization. He sided with the Mensheviks in 1903 and sat in the First State Duma in 1906. In 1917 he chaired the Tbilisi Soviet and the National Council of Georgia; in May 1918 he headed the session that declared independence, and from July he led the government of the Democratic Republic of Georgia, carrying out land reform and social legislation. After the Red Army invasion of 1921 he went into exile in France, led the government-in-exile and died near Paris in 1953.

Mensheviks (RSDLP) Non-Bolshevik socialists 1869–1934 → Died

One of the six who built Iskra: the Menshevik theorist who parted with Lenin

Witnessing the October Revolution, Potresov called it "the murder of democracy" and the Bolshevik regime that followed "the socialism of fools."

One of the six original editors of Iskra (1900) and a founding figure of the RSDLP. At the 1903 party congress he sided with Martov and became a leading Menshevik theorist, arguing for a mass party against Lenin's vanguard model. During WWI he led the defensist wing of Menshevism; he rejected the October Revolution and was briefly imprisoned by the Cheka in 1919. He left the USSR in 1925 and continued writing against the Soviet regime from Berlin and Paris until his death.

Spanish Republic state institutions Non-Bolshevik socialists 1869–1946 ○ Illness

The UGT worker-leader they called the Spanish Lenin, a prime minister broken between revolution and war

In November 1936 Largo Caballero appointed four CNT leaders to his cabinet: anarchists whose programme was the abolition of the state took ministerial office in one. One of them, the health minister Federica Montseny, was the first woman to hold a ministry in Spanish history.

A man who left school at seven, worked as a stucco plasterer and became a union leader. At the head of the UGT he was sentenced to life for the general strike of August 1917, and under the Primo de Rivera dictatorship he took a seat on the Council of State to keep the organization alive, a choice argued over for the rest of his life. As labour minister of the Second Republic he pushed through the eight-hour day in the countryside, and around the Asturias rising of 1934 he moved so far left that his supporters called him the Spanish Lenin. In September 1936 he became prime minister and war minister, and in November brought four CNT leaders into the cabinet, seating anarchists in a government for the first time; but he clashed continuously with the communists and the Soviet advisers over rebuilding a regular army and over the pace of the revolution. After the May Days of 1937 he refused to outlaw the POUM, lost his ministers and fell. In exile in France he was seized by the Gestapo and held in Sachsenhausen until the liberation of 1945.

Socialist Revolutionary Party (PSR/SR) Non-Bolshevik socialists 1870–1908 ○ Pulmonary sarcoma

The 'Tiger of the Revolution' who founded the SR Combat Organization

Arrested in Kiev in May 1903, Gershuni did not resist — instead he kissed his handcuffs and leg irons before the watching gendarmes, a gesture that entered revolutionary legend.

A co-founder of the Socialist Revolutionary Party and the founder and first leader of its Combat Organization, he masterminded the political assassinations that shook the Russian Empire in 1902–1903, beginning with Interior Minister Sipyagin. Born to a Jewish family, he was a pharmacist and bacteriologist who ran cultural-enlightenment schools in Minsk before the limits of legal methods drove him to become a full-time revolutionary; as the 'Tiger of the Revolution' he became the Empire's most wanted man. Arrested in 1903 and sentenced to death, commuted to life at hard labor, he escaped the Akatuy katorga in 1906 hidden in a barrel of sauerkraut, traveling through China, Japan, and the United States to return to Europe, where he died before learning that his deputy and successor Yevno Azef was an Okhrana spy.

Spanish Socialist Workers' Party (PSOE) Non-Bolshevik socialists 1870–1940 ○ Died in prison

PSOE right-wing leader, Speaker of the Cortes; joined Casado's coup, refused exile, and died in Franco's prison

"The great majority, the masses, they cannot leave, and I, who have always lived with the workers, will continue with them and with them I will stay. Whatever is their fate will be mine," to the socialist daily La Voz, March 1939

A Marxist revisionist who started as a philosophy professor in Madrid and succeeded Pablo Iglesias as leader of the PSOE and UGT in 1925. As Speaker of the Constituent Cortes (1931) he held to a moderate parliamentarism, and his opposition to the armed rising of October 1934 cost him his party base. During the Civil War he stayed in Madrid seeking a negotiated peace, and in March 1939 joined Colonel Casado's coup against Negrín, serving on the National Defence Council; but Franco demanded unconditional surrender. When every other council member fled, Besteiro refused, telling the socialist daily La Voz that he had always lived with the workers and would share their fate; a Francoist court martial sentenced him to life imprisonment and he died in Carmona prison.

Germany state institutions Non-Bolshevik socialists 1870–1944 ○ Natural death

Social Democratic chancellor whose government accepted the Treaty of Versailles under an Allied ultimatum

Born in Darkehmen in the Province of Prussia, he worked as a lawyer’s clerk, co-founded the office employees’ union and was second chairman of the General Commission of Trade Unions from 1908 to 1918. Elected to the Reichstag for the SPD in 1912, he became labour secretary in Max von Baden’s cabinet in October 1918. When Scheidemann resigned in protest at the Treaty of Versailles in June 1919, Bauer, until then a vocal critic of the treaty, succeeded him and got it through the National Assembly. His government carried out tax reform and extended social insurance, but was forced out in March 1920 over the negotiations conducted with the Kapp putschists. He was later vice-chancellor and treasury minister, and the Barmat corruption scandal cost him his seat in 1925. He died in Berlin in 1944.