And there was this:
Then XKCD did this:
And Olga Nunes sang a fully-animated this:
And now some fabulous folks, including a few friends of mine and a whole lot of geek icons, did this:
Just yay. I don't even watch the Discovery channel, but watching that second video made me cry. Again.
Line-by-line list of participants.
Wow! Would you believe I hadn’t seen any of those? Thanks for providing the whole history. And I do love xkcd!