Title: Lenin i mezhdunarodnai͡a sot͡sial-demokratii͡a
Subjects: Congresses, History, Rossiĭskai︠a︡ sot︠s︡ial-demokraticheskai︠a︡ rabochai︠a︡ partii︠a︡, Socialism
Places: Europe
People: Vladimir Ilʹich Lenin (1870-1924)