Animal Farm is an allegorical novella by George Orwell, first published in England on 17 August 1945. The book tells the story of a group of farm animals who revolt against their human farmer, hoping to create a society where animals can be equal, free, and just. However, the revolution is hijacked by the pigs, who become just as oppressive as the humans. Animal Farm is an allegory for the Russian Revolution and the subsequent Soviet Union.