In Chapter 1 of Animal Farm Old Major speaks to the other animals; he dies in the beginning of Chapter 2. Judging these other animals' reactions in Chapter 2, the most moving appeal of the old boar has been that of the need to liberate themselves from man.
At the end of Chapter 1, Old Major leads the other animals in a song he has created, "Beasts of England." In this melody he sings of the day that animals will be free of the oppression of "Tyrant Man," whom they will overthrow. In so doing, rings will be removed from the cattle's noses, harnesses taken from the back of horses, and whips will no longer be used. But, the animals must labor for this day of freedom.
After Old Major dies, two young, bright boars named Snowball and Napoleon and a brilliant talker, Squealer, elaborate upon the teachings of old Major and develop them into an ideology that they name Animalism. Together they hold secret meetings and instruct the other animals. Despite two dissidents, Mollie and Moses, a raven who is a spy and fast talker, the pigs convince the two carthorses, Boxer and Clover, who have difficulty with independent thought. Later, some of the others embrace the concept of freedom, especially when Mr. Jones neglects them and they are underfed because he has lost money and cannot afford to care for them as he should. This deprived condition of the animals, like that of the peasants of many revolutions, becomes the catalyst for the rebellion on the farm of Mr. Jones, the "tyrant."
With one accord, though nothing of the kind had been planned beforehand, they flung themselves upon their tormentors, and Jones and his men suddenly found themselves being butted and kicked from all sides.
Jones runs out to the road where the animals chase him and slam the five-barred gate behind him and his men. Observing what is occurring, Mrs. Jones quickly packs a carpet bag and hastens to join her husband. After all the humans have left, the animals race around the perimeter of the farm joyously; then they sing Beasts of England as a victory song.