I got this from the Arya Stark chapters in the later Song of Fire and Ice books, except I can't remember the exact wording of the question.

Basically what is one thing you learnt today that you didn't already know? With this being GC I guess there's no restrictions, but if it's something videogame related you could post that too (unless the mods say otherwise )

I learnt that April 22nd is Earth Day, an event which demonstrates support for environmental protection, if wikipedia is to be believed.

So what has TFF learnt today?