As the Russian Revolution of 1905 progressed, Bolsheviks, Mensheviks, and smaller non-Russian social democratic parties operating within the Russian Empire attempted to reunify at the 4th Congress of the RSDLP held in April 1906 at Folkets hus, Norra Bantorget, in Stockholm. When the Mensheviks made an alliance with the Jewish Bund, the Bolsheviks found themselves in a minority.