Emancipation Edict of Alexander II: didi it free 23 million or 40 million?

Yes, what @girlpuncher said. One of the main things you're supposed to learn by studying history is how to think critically about sources of information. You seem to have been drunk and passed out during the lecture where that was covered.

This is the point where you actually look at the evidence presented to arrive at each claim, rather than just blindly accepting one or the other.