How was Animal Farm similar to the time of communism?

George Orwell wrote this allegory and based it on the
Russian Revolution, which lead to the rise and fall of Communism in Russia. The animals
were facing hardships of lack of food and care by their drunken farmer who is compared
to the Czars of Russia. Old Major, an old boar, brings them together and teaches them
“The Beast of England” to bind them together and to work for something better. Karl
Marx, who invented Communism, died before the revolution and is represented by Old
Major.  Communism was supposed to make life easier for the Russian people, like
Animalism was for the animals. In the end, a crafty few grabbed power like Napoleon the
pig, who was based on Joseph Stalin.  The common people were worse off after the
revolution, just like the animals at Animal Farm.