 Complete the following phrase:  In the beginning of the 1905 Russian revolution he returned to Russia. He worked among workers of Dvinsk, Bialystok, Gomel, was one of the leaders of the strike at Libava-Romny railroad. At the 7-th Congress of the Bund, where he first used the pseudonym Max Goldfarb, he was elected a candidate for the Central Committee. At the end of 1906 he was arrested by police and spent three months in prison. After that he left Russia - first to England where he participated at the London 