Historical biography archive · Updated 2026-11-03

Leon Trotsky Biography and Timeline

Follow Leon Trotsky through 326 dated historical records for Russia.

Leon Trotsky, historical timeline

A chronological timeline drawn from matching World History Database records.

326Distinct records
1 of 9Page
1879–1905Years on this page

1879

Birth of Leon Trotsky

Yanovka · Politics / SDP

Leon Trotsky is born Lev Davidovich Bronshtein in Yanovka, Kherson Province of the Russian Empire (todays Bobrynets Raion, Kirovohrad Oblast, Ukraine)

1897

South Russian Workers Union

Nikolayev · Politics / SDP

Trotsky helps organize the South Russian Workers Union in Nikolayev

1898

Arrest of Leon Trotsky

Politics / SDP

Over 200 members of the South Russian Workers Union, including Trotsky, are arrested

South Russian Workers Union

Politics / SDP

Over 200 members of the South Russian Workers Union, including Trotsky, are arrested

Bolshevik Party

Member of RSDP · Politics / SDP

Trotsky and most of the Iskra editors supported Martov and the Mensheviks while Plekhanov supported Lenin and the Bolsheviks. Pro-Iskra delegates unexpectedly split into two factions, Lenin and his supporters (known as Bolsheviks) argued for a smaller but highly organized party, Martov and his supporters (known as Mensheviks) argued for a larger and less disciplined party

Menshevik Party

Member of RSDP · Politics / SDP

Trotsky and most of the Iskra editors supported Martov and the Mensheviks while Plekhanov supported Lenin and the Bolsheviks. Pro-Iskra delegates unexpectedly split into two factions, Lenin and his supporters (known as Bolsheviks) argued for a smaller but highly organized party, Martov and his supporters (known as Mensheviks) argued for a larger and less disciplined party

RSDLP

Member of RSDP · Politics / SDP

Pro-Iskra delegates unexpectedly split into two factions, Lenin and his supporters (known as Bolsheviks) argued for a smaller but highly organized party, Martov and his supporters (known as Mensheviks) argued for a larger and less disciplined party.

RSDLP

Member of RSDP · Politics / SDP

The first congress went as planned, with Iskra supporters handily defeating the few "economist" delegates.

RSDLP

Member of RSDP · Politics / SDP

Trotsky and most of the Iskra editors supported Martov and the Mensheviks while Plekhanov supported Lenin and the Bolsheviks.

1900

On the Philosophy of the Superman

Politics / SDP

Writes an early essay criticizing Nietzschean individualism and examining the social meaning of the superman idea.

1901

On Optimism and Pessimism

Politics / SDP

Writes On Optimism and Pessimism, reflecting on historical change and the prospects of the new century.

1902

Exile of Leon Trotsky

London · Politics / SDP

Escapes to London from Siberia

Iskra Editorial Collaboration

Member of RSDP · London · Politics / SDP

Begins working with Lenin, Plekhanov, Martov and other Russian Social Democrats around the émigré newspaper Iskra.

RSDLP

Member of RSDP · London · Politics / SDP

Appointed Member of RSDP, after meeting Lenin for the 1st time

Trotsky Pseudonym Adopted

Member of RSDP · London · Politics / SDP

Escapes Siberian exile using papers bearing the name Trotsky, the surname he thereafter uses publicly.

1903

Second Congress

Marxist Leader · London · Politics / Russian Social Democratic Labour Party

Sides with Martov during the early factional dispute.

Role range: 1898-1918 – 1903-1904

RSDLP

Politics / SDP

The first Congress of the newly formed Russian Social Democratic Labor Party (RSDLP) is held, and from then on Trotsky considered himself a member of the party

RSDLP

Politics / SDP

The first Congress of the newly formed Russian Social Democratic Labor Party (RSDLP) is held, and from then on Trotsky considered himself a member of the party. After a period of secret police repression and internal confusion that followed the first party Congress in 1898, Iskra succeeded in convening the party's 2nd congress in London in August 1903, Trotsky and other Iskra editors attend

1904

Bolshevik Party

Member of RSDP · Politics / SDP

Trotsky left the Mensheviks in September 1904 over their insistence on an alliance with Russian liberals and their opposition to a reconciliation with Lenin and the Bolsheviks. During these years Trotsky began developing his theory of permanent revolution, which led to a close working relationship with Alexander Parvus in 1904-1907

Menshevik Party

Member of RSDP · Politics / SDP

Trotsky left the Mensheviks in September 1904 over their insistence on an alliance with Russian liberals and their opposition to a reconciliation with Lenin and the Bolsheviks

Permanent Revolution

Member of RSDP · Politics / SDP

During these years Trotsky began developing his theory of permanent revolution, which led to a close working relationship with Alexander Parvus in 1904-1907

RSDLP

Member of RSDP · Politics / SDP

Trotsky left the Mensheviks in September 1904 over their insistence on an alliance with Russian liberals and their opposition to a reconciliation with Lenin and the Bolsheviks. During these years Trotsky began developing his theory of permanent revolution, which led to a close working relationship with Alexander Parvus in 1904-1907

Our Political Tasks

Marxist Leader · Politics / Russian Social Democratic Labour Party

Publishes Our Political Tasks, criticizing Lenin's concept of party organization after the Bolshevik-Menshevik split.

Role range: 1898-1918

Report of the Siberian Delegation

Marxist Leader · Politics / Russian Social Democratic Labour Party

Writes Report of the Siberian Delegation during the factional disputes following the RSDLP Second Congress.

Role range: 1898-1918

The Proletariat and the Revolution

Marxist Leader · Politics / Russian Social Democratic Labour Party

Writes The Proletariat and the Revolution while developing his analysis of the coming Russian revolutionary struggle.

Role range: 1898-1918

1905

Bloody Sunday

Member of Russian Social Democratic Labour Party · Saint Petersburg · Politics / Russian Social Democratic Labour Party

Returns secretly to Russia after Bloody Sunday.

Role range: 1905-1905 – 1905-1905

Bloody Sunday

Marxist Leader · Saint Petersburg · Revolution / Revolution of Russia

Returns to Russia after the revolutionary crisis begins.

Role range: 1905-1905 – 1905-1905

Saint Petersburg Soviet

Marxist Leader · Saint Petersburg · Politics / Russian Social Democratic Labour Party

Emerges as a leading figure in the workers' Soviet.

Role range: 1905-1905 – 1905-1905

Soviet of Saint Petersburg

Vice Chairman of Saint Petersburg Soviet · Saint Petersburg · Politics / Russian Social Democratic Labour Party

Helps found the Saint Petersburg Soviet, 50 such Soviets are soon founded all over Russia

Saint Petersburg Soviet

Menshevik Leader · Saint Petersburg · Revolution / Revolution of Russia

Becomes a central organiser and speaker in the Soviet.

Role range: 1905-1905 – 1905-1905

Saint Petersburg Soviet

Menshevik Leader · Saint Petersburg · Revolution / Revolution of Russia

Becomes a major speaker and organiser in the 1905 Soviet.

Role range: 1905-1905 – 1905-1905

Soviet Chairmanship

Menshevik Leader · Saint Petersburg · Revolution / Revolution of Russia

Assumes leading authority after Khrustalev-Nosar's arrest.

Role range: 1905-1905 – 1905-1905

Financial Manifesto

Menshevik Leader · Saint Petersburg · Revolution / Revolution of Russia

Supports the Soviet appeal against tsarist finances.

Role range: 1905-1905 – 1905-1905

Arrest of Leon Trotsky

Menshevik Leader · Saint Petersburg · Revolution / Revolution of Russia

Is arrested after the Soviet is suppressed.

Role range: 1905-1905 – 1905-1905

Arrest of Leon Trotsky

Menshevik Leader · Saint Petersburg · Revolution / Revolution of Russia

Is arrested when the 1905 Soviet is suppressed.

Role range: 1905-1905 – 1905-1905

Arrest of Soviet

Menshevik Leader · Saint Petersburg · Revolution / Revolution of Russia

Is arrested after the Soviet is suppressed.

Role range: 1905-1905 – 1905-1905

Arrest of Soviet

Menshevik Leader · Saint Petersburg · Revolution / Revolution of Russia

Is arrested when the 1905 Soviet is suppressed.

Role range: 1905-1905 – 1905-1905

Trial of Soviet Deputies

Menshevik Leader · Saint Petersburg · Revolution / Revolution of Russia

Faces prosecution after the suppression of the Soviet.

Role range: 1905-1905 – 1905-1906

Constitution of Russia

Politics / Russian Social Democratic Labour Party

"We are given a Constitution but absolutism remains"

Izvestia

Politics / Russian Social Democratic Labour Party

"We are given a Constitution but absolutism remains"

Records, sources and methodology

These dates and descriptions come from the historical_events database. Exact duplicate records have been collapsed. Names are grouped by the country, Name 2 and Name 1 fields; records with missing Name 2 cannot be reliably assigned to an individual biography. Check the underlying sources before formal citation.