Never heard of Darwin day.

It's Darwin's Birthday. I only heard of it twice before.

First I've heard of it, which is strange. I'd have thunk that someone with as much importance as Darwin would be printed in my calendar at the versy least... but he isn't.

So, Happy Darwin Day, MJ! And the rest of you.

Why the fuck is "Thunk" in my spell checker dictionary.

http://dictionary.reference.com/search?q=thunk&x=0&y=0

It's onomatopoeia.