If you follow MiM, which I'm pretty sure most of you do, then you'll already know this. But according to the MiM timeline, it was Severus Snape's birthday a couple days ago.
The Daily Prophet even dedicated an article to it, which you can read here.
More people wished Professor Snape than anyone other MiM person... that says something. And a lot of people gave him presents, too... I gave him a pewter mug engarved with the Slytherin Crest and a serpent handle. Although, he seemed to enjoy my condolensces that his birthday was another year closer to death more. He said the thought was comforting.
Of course, he got a lot of wine, which is always a favorite... and the Dark Lord gave him a vase of lilies. I don't know if that was tactless or sensitive of him... I mean, wouldn't Snape like some lilies to smell whenever he liked? Or would he be too sodden with grief to look at them without crying?
And as usual, Bellatrix and Tonks and pretty much all the rebellion members only insulted him about his birthday. >_<