Consistent with its self-conception as a geographic unit of an All-Russian Social Democratic party, the SDKPiL attended the 1903 Congress of the Russian Social Democratic Labour Party (RSDLP) held in London at which the famous division occurred between the Menshevik and Bolshevik factions. The delegation from the SDKPiL was concerned chiefly with maintaining its own autonomy within the party as a whole and with the removal of recognition of the Right of Nations to Self Determination from the party's program. This was the beginning of the long dispute between the Polish and Russian Social Democrats on this question. Only a little while later theoretical differences would also develop in regard to the Bolshevik slogan of "the Democratic Dictatorship of the Proletariat and the Peasantry" which the Polish revolutionaries rejected.