Socialist Revolutionary Party was a major Russian political party formed in 1901 with the idea of socialism to support peasantry propagating socialisation of land and federal governmental structure. In 1917 it was the largest social group in Russia. The party split into the Bolsheviks and the Mensheviks due to ideological differences. The Bolsheviks wanted to seize power through a revolution and establish a communist dictatorship. The Mensheviks, on the other hand, believed in working within the existing system and bring in gradual changes that would lead to the establishment of a parliamentary democracy.