In the beginning of the story, the animals gather around Old Major during a meeting. Old Major gives his speech and teaches the animals "Beasts of England."
AHHHHH! I will get you Napoleon!
The farmer, Mr. Jones continues to mistreat and starve the animals. The idea of a rebellion starts stirring.
Kill 'em boys.
Soon after Old Major's death, the animals form a rebellion against Mr.Jones. When they win they rename the farm "Animal Farm" and create the 7 commandments.
Four legs good, two legs better!
After overthrowing Mr.Jones, the pigs begin to take power. Two pigs, Snowball and Napoleon start to fight. Eventually, Napoleon kicks out snowball with his guard dogs to get his way and the other animals are in shock.
Napoleon takes control and gains all power on the farm. He executes anyone who gets in his way and soon the 7 comandments start to fall apart and are altered.
Soon the pigs start to imitate human's behavior and start drinking, wearing clothes and standing on two legs. The 7 commandments have been completely altered and the name "Animal Farm" changes to its original name, "Manor Farm."