Animal Farm vs Russian Revolution

In this website, you are able to know more about the aim of George Orwell when he was writing the book Animal Farm, is it just a book talking about animals ruling a farm in England? Or does it have something behind? This website compares George Orwell's Animal Farm and Russian Revolution, it can tell you why two of them are similar. There are six pages, two of them are about the people , two of them are about systems and one of them is an extra, about the author of the book called Animal Farm, last but not least, the homepage, the one with an introduction and bibliography.