Some call it “Christmas Card Day,” some call it “Mail Your Cards Day.” I think the point is that if you’re the card-sending type, you should probably get them in the mail so they arrive in a timely fashion. Me, I’m not a card person. A post on my Facebook wall is just fine by me.
Also, on this day back in 1884, a patent was issued for ball-bearing roller skates. Of course, they were likely the kind attached to a metal plate that you buckled onto your own shoe.
(Insert roller skate song here.)