The Russian Social Democratic Labour Party (RSDLP), also known as the Russian Social Democratic Workers' Party (RSDWP) or the Russian Social Democratic Party (RSDP), was a

socialist Socialism is an economic ideology, economic and political philosophy encompassing diverse Economic system, economic and social systems characterised by social ownership of the means of production, as opposed to private ownership. It describes ...

political party founded in 1898 in

Minsk Minsk (, ; , ) is the capital and largest city of Belarus, located on the Svislach (Berezina), Svislach and the now subterranean Nyamiha, Niamiha rivers. As the capital, Minsk has a special administrative status in Belarus and is the administra ...

Russian Empire The Russian Empire was an empire that spanned most of northern Eurasia from its establishment in November 1721 until the proclamation of the Russian Republic in September 1917. At its height in the late 19th century, it covered about , roughl ...

. The party emerged from the merger of various

Marxist Marxism is a political philosophy and method of socioeconomic analysis. It uses a dialectical and materialist interpretation of historical development, better known as historical materialism, to analyse class relations, social conflic ...

groups operating under Tsarist repression, and was dedicated to the overthrow of the autocracy and the establishment of a

socialist state A socialist state, socialist republic, or socialist country is a sovereign state constitutionally dedicated to the establishment of socialism. This article is about states that refer to themselves as socialist states, and not specifically ...

based on the revolutionary leadership of the Russian proletariat. The RSDLP's formative years were marked by ideological and strategic disputes culminating at its Second Congress in 1903, where the party split into two main factions: the

Bolsheviks The Bolsheviks, led by Vladimir Lenin, were a radical Faction (political), faction of the Marxist Russian Social Democratic Labour Party (RSDLP) which split with the Mensheviks at the 2nd Congress of the Russian Social Democratic Labour Party, ...

, led by

Vladimir Lenin Vladimir Ilyich Ulyanov ( 187021 January 1924), better known as Vladimir Lenin, was a Russian revolutionary, politician and political theorist. He was the first head of government of Soviet Russia from 1917 until Death and state funeral of ...

, who advocated a tightly organized vanguard of professional revolutionaries; and the Mensheviks, led by Julius Martov and others, who favored a more moderate, broad-based model. During and in the years after the 1905 Revolution, the RSDLP operated both legally and underground, publishing newspapers, infiltrating trade unions, and agitating among industrial workers. Despite repeated attempts at reunification, the rift between Bolsheviks and Mensheviks widened, resulting in a formal split in 1912. The February Revolution of 1917 saw some Mensheviks support cooperation with the

Provisional Government A provisional government, also called an interim government, an emergency government, a transitional government or provisional leadership, is a temporary government formed to manage a period of transition, often following state collapse, revoluti ...

, which the Bolsheviks opposed in favor of "all power to the soviets". After the Bolsheviks seized power in the

October Revolution The October Revolution, also known as the Great October Socialist Revolution (in Historiography in the Soviet Union, Soviet historiography), October coup, Bolshevik coup, or Bolshevik revolution, was the second of Russian Revolution, two r ...

later that year, the RSDLP was effectively dissolved. In 1918, the Bolshevik party formally renamed itself the Russian Communist Party (Bolsheviks), which later became the Communist Party of the Soviet Union.

History

Origins and early activities

The RSDLP was not the first Russian

group; the Emancipation of Labour group had been formed in 1883. The RSDLP was created to oppose the revolutionary populism of the

Narodniks The Narodniks were members of a movement of the Russian Empire intelligentsia in the 1860s and 1870s, some of whom became involved in revolutionary agitation against tsarism. Their ideology, known as Narodism, Narodnism or ,; , similar to the ...

, which was later represented by the Socialist Revolutionary Party (SRs). The RSDLP was formed at an underground conference in Minsk in March 1898. There were nine delegates: from the Jewish Labour Bund, and from the ''Robochaya Gazeta'' ("Workers' Newspaper") in

Kiev Kyiv, also Kiev, is the capital and most populous List of cities in Ukraine, city of Ukraine. Located in the north-central part of the country, it straddles both sides of the Dnieper, Dnieper River. As of 1 January 2022, its population was 2, ...

, both formed a year earlier in 1897; and the League of Struggle for the Emancipation of the Working Class in

Saint Petersburg Saint Petersburg, formerly known as Petrograd and later Leningrad, is the List of cities and towns in Russia by population, second-largest city in Russia after Moscow. It is situated on the Neva, River Neva, at the head of the Gulf of Finland ...

. Some additional social democrats from Moscow and

Yekaterinburg Yekaterinburg (, ; ), alternatively Romanization of Russian, romanized as Ekaterinburg and formerly known as Sverdlovsk ( ; 1924–1991), is a city and the administrative centre of Sverdlovsk Oblast and the Ural Federal District, Russia. The ci ...

also attended. The RSDLP program was based strictly on the theories of

Karl Marx Karl Marx (; 5 May 1818 – 14 March 1883) was a German philosopher, political theorist, economist, journalist, and revolutionary socialist. He is best-known for the 1848 pamphlet '' The Communist Manifesto'' (written with Friedrich Engels) ...

and

Friedrich Engels Friedrich Engels ( ;"Engels"
''Random House Webster's Unabridged Dictionary''.Okhrana'' (imperial secret police). Members of the RSDLP became popularly labelled as ''esdeki'' (, singular: ) - from the Russian-language names of the initial letters S () and D () standing for "Social Democrats" (). Before the 2nd Party Congress in 1903, a young intellectual named Vladimir Ilyich Ulyanov (better known by his pseudonym,

) joined the party. In 1902, he had published '' What Is To Be Done?'', outlining his view of the party's proper task and methodology: to form "the vanguard of the proletariat". He advocated a disciplined, centralized party of committed activists who would fuse the underground struggle for political freedom with the class struggle of the proletariat.

Internal divisions

In 1903, the 2nd Party Congress met in exile in

Brussels Brussels, officially the Brussels-Capital Region, (All text and all but one graphic show the English name as Brussels-Capital Region.) is a Communities, regions and language areas of Belgium#Regions, region of Belgium comprising #Municipalit ...

to attempt to create a united force. However, after unprecedented attention from the Belgian authorities the Congress moved to London, meeting on 11 August in Charlotte Street. At the Congress, the party split into two irreconcilable factions on 17 November: the

Bolshevik The Bolsheviks, led by Vladimir Lenin, were a radical Faction (political), faction of the Marxist Russian Social Democratic Labour Party (RSDLP) which split with the Mensheviks at the 2nd Congress of the Russian Social Democratic Labour Party, ...

s (derived from ''bolshinstvo''—Russian for "majority"), headed by Lenin; and the Mensheviks (from ''menshinstvo''—Russian for "minority"), headed by Julius Martov. Confusingly, the Mensheviks were actually the larger faction, but the names Menshevik and Bolshevik were taken from a vote held at the 1903 Party Congress for the editorial board of the party newspaper, '' Iskra'' (''Spark''), with the Bolsheviks being the majority and the Mensheviks being the minority. These were the names used by the factions for the rest of the party Congress and these are the names retained after the split at the 1903 Congress. Lenin's faction later ended up in the minority and remained smaller than the Mensheviks until the

Russian Revolution The Russian Revolution was a period of Political revolution (Trotskyism), political and social revolution, social change in Russian Empire, Russia, starting in 1917. This period saw Russia Dissolution of the Russian Empire, abolish its mona ...

. A central issue at the Congress was the question of the definition of party membership. Martov proposed that a member of the Russian Social Democratic Labour Party was "one who accepts its program and supports it both materially and by regular cooperation under the leadership of one of its organizations.", English translation in On the other hand, Lenin proposed a more strict definition that a member of the Russian Social-Democratic Labour Party was "one who recognizes the Party’s program and supports it by material means and by personal participation in one of the Party’s organizations". Martov's big tent definition of party membership initially won the vote 28–23. However, his majority was short-lived, given the exit from the party, for separate reasons, of its Bundist and Economist members who had supported his definition. That left in the majority those in favour of Lenin's definition of party members as, in effect, professional revolutionaries- centrally directed, tightly disciplined, and therefore capable of operating effectively in the tsarist police state. From this was derived the faction names: "Majority" ("Bolshevik") and "Minority" ("Menshevik"). Despite a number of attempts at reunification, the split proved permanent. As time passed, ideological differences emerged in addition to the original organizational differences. The main difference that emerged in the years after 1903 was that the Bolsheviks believed that only the workers, backed up by the peasantry, could carry out the bourgeois-democratic revolutionary tasks in Russia, which would then provide incentive to socialist revolution in Germany, France and Britain, while the Mensheviks believed that the workers and peasants must seek out enlightened people from the liberal bourgeoisie to carry out the bourgeois-democratic revolutionary tasks in Russia. The two warring factions both agreed that the coming revolution would be "bourgeois-democratic" within Russia, but while the Mensheviks viewed the liberals as the main ally in this task, the Bolsheviks opted for an alliance with the peasantry as the only way to carry out the bourgeois-democratic revolutionary tasks while defending the interests of the working class. Essentially, the difference was that the Bolsheviks considered that in Russia the tasks of the bourgeois democratic revolution would have to be carried out without the participation of the

bourgeoisie The bourgeoisie ( , ) are a class of business owners, merchants and wealthy people, in general, which emerged in the Late Middle Ages, originally as a "middle class" between the peasantry and aristocracy. They are traditionally contrasted wi ...

. The 3rd Party Congress was held separately by the Bolsheviks. The 4th Party Congress was held in

Stockholm Stockholm (; ) is the Capital city, capital and List of urban areas in Sweden by population, most populous city of Sweden, as well as the List of urban areas in the Nordic countries, largest urban area in the Nordic countries. Approximately ...

, Sweden and saw a formal reunification of the two factions (with the Mensheviks in the majority), but the discrepancies between Bolshevik and Menshevik views became particularly clear during the proceedings. The 5th Party Congress was held in London, England, in 1907. It consolidated the supremacy of the Bolshevik faction and debated strategy for communist revolution in Russia.

1912 split

The Social Democrats (SDs) boycotted elections to the First Duma (April–July 1906), but they were represented in the Second Duma (February–June 1907). With the SRs, they held 83 seats. The Second Duma was dissolved on the pretext of the discovery of an SD conspiracy to subvert the army. Under new electoral laws, the SD presence in the Third Duma (1907–1912) was reduced to 19. From the Fourth Duma (1912–1917), the SDs were finally and fully split. The Mensheviks had seven members in the Duma and the Bolsheviks had six, including Roman Malinovsky, who was later uncovered as an Okhrana agent. In the years of Tsarist repression that followed the defeat of the

1905 Russian Revolution The Russian Revolution of 1905, also known as the First Russian Revolution, was a revolution in the Russian Empire which began on 22 January 1905 and led to the establishment of a constitutional monarchy under the Russian Constitution of 1906, th ...

, both the Bolshevik and Menshevik factions faced splits, causing further splits in the RSDLP, which manifested themselves from late 1908 and the years immediately following. The Mensheviks split into the "Pro-Party Mensheviks" led by Georgi Plekhanov, who wished to maintain illegal underground work as well as legal work; and the "Liquidators", whose most prominent advocates were Pavel Axelrod, Fyodor Dan, Nikolai Aleksandrovich Rozhkov and Nikolay Chkheidze, who wished to pursue purely legal activities and who now repudiated illegal and underground work. The Menshevik Julius Martov was formally also considered a liquidator, partly because most of his closest political allies were part of the liquidator subfaction. The Bolsheviks split threeways into the Proletary group led by Lenin, Grigory Zinoviev and

Lev Kamenev Lev Borisovich Kamenev. ( Rozenfeld; – 25 August 1936) was a Russian revolutionary and Soviet politician. A prominent Old Bolsheviks, Old Bolshevik, Kamenev was a leading figure in the early Soviet government and served as a Deputy Premier ...

, who waged a fierce struggle against the liquidators, ultimatists and recallists; the Ultimatist group led by Grigory Aleksinsky, who wished to issue ultimatums to the RSDLP Duma deputies to follow the party line or to resign immediately; and the Recallist group led by Alexander Bogdanov and Anatoly Lunacharsky and supported by

Maxim Gorky Alexei Maximovich Peshkov (; – 18 June 1936), popularly known as Maxim Gorky (; ), was a Russian and Soviet writer and proponent of socialism. He was nominated five times for the Nobel Prize in Literature. Before his success as an aut ...

, who called for the immediate recall of all RSDLP Duma deputies and a boycott of all legal work by the RSDLP, in favour of increased radical underground and illegal work. There was also a non-faction group led by Leon Trotsky, who denounced all the "factionalism" in the RSDLP, pushed for "unity" in the party and focused more strongly on the problems of Russian workers and peasants on the ground. In January 1912, Lenin's Proletary Bolshevik group called a conference in Prague and expelled the liquidators, ultimatists and recallists from the RSDLP, which officially led to the creation of a separate party, known as the Russian Social Democratic Labour Party (Bolsheviks), while the Mensheviks continued their activities establishing the Russian Social Democratic Labour Party (Mensheviks). In August 1912, Trotsky's group tried to reunite all the RSDLP factions into the same party at a conference in Vienna, but he was largely rebuffed by the Bolsheviks. The Bolsheviks seized power during the

in 1917 when all political power was transferred to the soviets and in 1918 changed their name to the All-Russian Communist Party. They later banned the Mensheviks after the Kronstadt rebellion of 1921. The ''Interdistrictites'', known as the Russian Social Democratic Labour Party (Internationalists), emerged in 1913 as another faction originating from the RSDLP.

Party branches

Estonia

In 1902, the

Tallinn Tallinn is the capital city, capital and List of cities in Estonia, most populous city of Estonia. Situated on a Tallinn Bay, bay in north Estonia, on the shore of the Gulf of Finland of the Baltic Sea, it has a population of (as of 2025) and ...

organization of the RSDLP was founded, which in 1904 was converted into the Tallinn Committee of the party. In November, a parallel (that is, also directly under the CC of RSDLP) Narva Committee was created. Amongst other radicals, the Estonian RSDLP cadres were active in the 1905 Revolution. At the conference of the Estonian RSDLP organizations in Terijoki,

Finland Finland, officially the Republic of Finland, is a Nordic country in Northern Europe. It borders Sweden to the northwest, Norway to the north, and Russia to the east, with the Gulf of Bothnia to the west and the Gulf of Finland to the south, ...

in March 1907, the Bolshevik supporters came into serious conflict with the Mensheviks.

Livonia

At the 4th (Unity) Congress of the RSDLP in 1906, the Latvian Social Democratic Workers Party entered the RSDLP as a territorial organisation. After the Congress, its name was changed Social-Democracy of the Latvian Territory.

Congresses

Electoral history

Legislative elections

Notes

References

{{Authority control 1898 establishments in the Russian Empire 1918 disestablishments in Russia Old Bolsheviks Political parties disestablished in 1918 Political parties established in 1898 Organizations of the Russian Revolution of 1905