The Workers' Party for the Political Liberation of Russia (Russian: Рабочая партия политического освобождения России, Rabochaya partiya politicheskogo osvobozhdeniyat rossii, abbreviated 'РППОР', RPPOR) was a political party in Russia, founded in 1899. The membership of the party included Grigory Gershuni and Catherine Breshkovsky (which would become two of the key architects of the Socialist-Revolutionary Party) and its membership was predominately Jewish. The party had its roots in a Minsk workers' study circle founded in 1895. In 1899 the group had around sixty members. The party directed most of its agitation towards Jewish workers, a fact that differed the party from other narodnik groups. The main base of the party was found in Bielorussia (which had a large Jewish population). The p