Put this in Before: 1900 because I reckon this will require a far earlier PoD than merely a more liberal Stolypin or a more successful Kerensky. Essentially, I want to make Russia the heart of European democracy, much like Britain in our timeline, standing out among nations for its elected parliament and constitution.
How is this achieved?
To get the ball rolling, do we need to go back prior to the Romanovs?