Lev Kamenev arrested in 1902, ending his formal education. From that point on, he worked as a professional revolutionary, and was active in the capital St. Petersburg, Moscow and Tiflis. He adopted the surname Kamenev during this period. In the early 1900s, he married Olga Bronstein, a fellow Marxist (and younger sister of Leon Trotsky, who had also adopted a different surname). The couple had two sons together. Kamenev joined the Communists in 1901. He took a brief trip abroad in 1902, meeting Russian social democratic leaders living in exile, including Vladimir Lenin, whose adherent and close associate he became. He also
Lev Chernyi Lev Chernyi Lev Chernyi (; died September 21, 1921) was a Russian individualist anarchist theorist, activist and poet, and a leading figure of the Third Russian Revolution. In 1917, Chernyi was released from his political imprisonment by the Imperial Russian regime, and swiftly became one of the leading figures in Russian anarchism. After strongly denouncing the new Bolshevik government in various anarchist publications and joining several underground resistance movements, Chernyi was arrested by the Cheka on a charge of counterfeiting and in 1921 was executed without trial. Chernyi was born Pavel Dimitrievich Turchaninov () to an army colonel father. A