Tolkien wrote yearly letters to his children as if they were from Father Christmas. They started off as simple Happy Christmas letters but grew more complex including a polar bear sidekick, the man on the moon, goblins, snow-elves, pictures, and he even developed an Arktik language.
Christmas Cards in Victorian England were bizarre to put it mildly. Featuring dead birds, frogs murdering one another, sinister snowmen and others.
In 1974 sociologist Phillip Kunz sent 600 Christmas cards randomly to people he didn’t know. He got more then 200 replies, including people sending pictures of their families, diplomas and new homes.