xmas cultural differences

Today, I had to explain the Rudolph the red nosed reindeer story to a designer in Prague AND stickers! The designer had only the baby Jesus story for xmas and didn't play with stickers as a child. I never gave any thought to either being particular to anglo cultures, but apparently they are. Colleagues from France and Singapore weren't familiar with Rudolph either. Who woulda thought that after several years of marketing experience and an MBA I would be reduced to explaining a children's holiday story for a colleague...

Follow up: the boyfriend sent me this link that explains the character of Rudolph was created by a department store in Chicago in 1939.