On the last series of Buffy, there is an episode where Anya has a flashback of the time when she is sitting at a dining table in a statley home in St.Petersburg. The caption on the screen says 'St. Petersburg, 1905. Outside, there are people rioting, and the demon that Anya is with says 'There is a revolution outisde, that you are somewhat responsible for', which Anya replies something about it creating a socio-economic state, indicationg that this is the Communist revolution. Two points: Firstly, the two Russian revolutions were both in 1917, making the date 12 years out.....secondly, when the Communist revolution took place, St. Petersburg was called Petrograd, because the Russians thought St. Petersburg sounded too German (They were fighting the Germans in WW1 at that point). What annoys me is all they had to do is look in a history boo, or put 'Russian Revolution' in a search engine, which would take a minute, and they'd find out. Very, very careless, and so easily avoidable.