I remember my third grade teacher becoming furious when a boy in our class wrote “Merry Xmas.”
“NEVER replace the name of Christ with an X” she shouted. Of course today no teacher would dare say something like that in a public school, but this was back in the 1940s.
And she didn’t realize that the letter, x, represented the cross.
During the middle ages most people were illiterate, and those who couldn’t read and write would sign documents with an X to show they were Christians.
Whatever your beliefs, I hope this Christmas is a merry and wonderful one for you.