You know, that's a DAMN good question, Brenda...as a matter of fact, it seems to me that there used to be a whole heck of a lot more printed on my calendar. Phases of the moon, weird holidays in countries I've never been to, the beginnings of the seasons...just to name a few.
What's happened? Now we get a number, and that's it.
ETA: I sure hope it doesn't mean they don't KNOW when spring's going to happen any more. Wouldn't that be creepy?