You voice the concern of many, Peter
I just completed a study of Mr. Orwell and it seems that his whole life prior to writing Animal Farm and 1984 was in preparation. Stalin's reign had a huge impact on Orwell, even to a point where Stalin had Orwell on a hit list while he was in Spain.
One interesting tidbit I learned, 1984 has a different significance from what most of us think. When Orwell was trying to come up with a title, he had many versions that he did not like. His editor told him to make it short and pertain to the future. The year the manuscript was finished was 1948. So Orwell, flipped the last two digits and came up with 1984.