George Orwell's 'Animal Farm' (1945) is a classic example of an allegory—a story where characters and events represent real-world political figures. The pig 'Napoleon' represents Joseph Stalin, while 'Snowball' represents Leon Trotsky. The book's most famous line, 'All animals are equal, but some animals are more equal than others,' was a biting critique of how the ideals of the Russian Revolution were corrupted into a new form of tyranny. Because the UK was allied with the Soviet Union during WWII, Orwell struggled to find a publisher, as many feared the book would offend Stalin. After it was finally released, it became a global sensation, used for decades as a tool to teach the dangers of totalitarianism and the power of language in propaganda.