 Under the pressure of the Russian Revolution of 1905, on 6 August 1905, Sergei Witte issued a manifesto about the convocation of the Duma, initially thought to be an advisory organ.In the subsequent October Manifesto, Nicholas II pledged to introduce basic civil liberties, provide for broad participation in the State Duma, and endow the Duma with legislative and oversight powers.However, Nicholas II was determined to retain his autocratic power.