October Manifesto: Russian Empire government will transform from absolutist state to a two-housed parliament.

Count Witte :
Amidst the 1905 Revolution, some reforms were made to the constitution which ended the czarist autocracy by instituting a parliament. Citizens were be granted civil liberties such as the freedom of assembly, association, speech, religion, and press.
The new state legislature was composed of the upper house (State Council) and the lower house (State Duma). Council members were selected by the tsar, while Duma members were elected by citizens.

October Manifesto, First Constitution of the Russian Empire