The 3rd Congress of the Russian Social Democratic Labour Party was held during 12-27 April [25 Apr - 10 May (O.S.

Old Style and New Style dates

Old Style and New Style are used in English language historical studies either to indicate that the start of the Julian year has been adjusted to start on 1 January even though documents written at the time use a different start of year ; or to indicate that a date conforms to the Julian...

)] 1905 in London

London

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, UK

United Kingdom

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. It was the congress of the Bolsheviks only with a handful of Mensheviks. The meeting was so secretive we do not know the name of the hall they used.

Besides the routine topics, the agenda included the issues of the Russian Revolution of 1905

Russian Revolution of 1905

The 1905 Russian Revolution was a wave of mass political and social unrest that spread through vast areas of the Russian Empire. Some of it was directed against the government, while some was undirected. It included worker strikes, peasant unrest, and military mutinies...

. Lenin wanted the party to support Japan in its war on Russia (Joseph Pilsudski used the same tactic. The Congress put pressure on Lenin to return to Russia (he did eventually in November) by relocating the central committee and party newspaper in Russia.