 Complete the following phrase:  Bubnov was born in Ivanovo-Voznesensk in Vladimir Governorate now Ivanovo, Ivanovo Oblast, Russia on 23 March 1883 into a local Russian merchants family. He was expelled from Moscow University for revolutionary activities. He studied at the Moscow Agricultural Institute and while a student joined the Russian Social Democratic Labour Party RSDLP in 1903. He was a supporter of the Bolshevik faction of the party. In summer 1905, he joined the Ivanono-Voznesensk party committee, and was their delegate to the 4th 1906 and 