Leninism is the body of political theory, developed by and named after the Russian revolutionary and later Soviet premier Vladimir Lenin, for the democratic organisation of a revolutionary vanguard party and the achievement of a dictatorship of the proletariat, as political prelude to the establishment of socialism. Leninism comprises socialist political and economic theories, developed from Marxism, as well as Lenin’s interpretations of Marxist theory for practical application to the socio-political conditions of the agrarian early-twentieth-century Russian Empire. In February 1917, for five years, Leninism was the Russian application of Marxist economics and political philosophy, effected and realised by the Bolsheviks, the vanguard party who led the fight for the political independence of the working class.