In the late nineteenth century the Marxist movement began to generate interest in Russia. It was a positive response to the rapid growth of Industry and the proletariat groups of the lower-class workers who were successful in the industry. Their goal was to rouse the lower class into a revolution. Vladimir Lenin focused the proletariat to become the supporters of this revolution. Lenin believed that with World War I. Lenin expressed these ideas in his important book What's to Be Done? in 1902. When the leaders of Russian Marxism gathered for the first important party meeting in 1903, these ideas clashed with the idea of a looser, more democratic workers' party that was promoted by Lenin's old friend Iuli Martov (1873–1923). This disagreement