7 Commandments of Animalism ... 7. All Animals are Created Equal
The book starts off with the animals kicking Mr. and Mrs. Jones out of the farm and changing the name from Manor farm to Animal farm.
The farm rules start off fine, they help educate everybody, and the farm runs smooth. This all turns around when there is a fight for leader, ending with Napoleon on top and Snowball being chased out of the farm by Napoleon's dogs.
With Napoleon as the leader, rules begin to change. Meetings change from all types of animals in the farm to only the pigs go to the meetings. With this Napoleon becomes paranoid that people want to try to overthrow him.