 Complete the following phrase:  He was born in Odessa, Russian Empire, as Semyon Kesselman. In 1914 Zapadny graduated from the Jewish treasury school in Odessa. In July 1917 Zapadny joined the Odessa Red Guards Bolshevized paramilitary formations and later around the October Revolution joined the Bolshevik Party. Zapadny participated in the Odessa Bolshevik uprising in December 1917. With the ongoing 