In October 1917 the Bolsheviks under Lenin's leadership succeeded in gaining control over the chaotic city of Petrograd. Undoubtedly it was a great triumph for what early in 1917 had been a small, isolated group whose leaders were in exile either abroad or in Siberia. In analyzing the October Revolution, both participants and historians have given major credit to Lenin's brilliant planning and the disciplined, centralized party he had insisted upon as early as 1902. Thus those who opposed Lenin in October 1917 have usually been •branded as weak and indecisive with no positive program and no understanding of the real condition of Russia in 1917. As is often the case with the defeated, the opposition's program has received much criticism but little study. One of the revolutionaries so treated is Grigorii Zinoviev.