And he was a member of the Ukrainian Social Democratic Party , where he served as Chairman of the party 's Central Committee in 1914 to 1921 .
He was also one of the organizers of several peasant strikes in Eastern Galicia in 1902 .
One was a one of the Ukrainian Social Democratic Party , where one served as Chairman of the party 's Central Committee in 1914 to 1921 .
He was also one of the organizers of several peasant strikes in Eastern Galicia in 1902 .