My father celebrated his 61st birthday, December 23. I've yet to get him a present. I remember telling him about four years ago that his birthday was earmarked by those pioneers of the calendar, the Mayans. They called their calendar the Tzolkin. It's so accurate as ancient calendars go, and after all these centuries it's still only off by a few odd seconds. According to the Mayans, the world ends with a cataclysm on December 23, 2012. That would be Dad's 65th.
I'm going to buy him a pair of pants and wish him a long life.