does anyone rememebr an episode when...

I don't remember too much of this show. but this is the same show where they'd show you the origins of specific things like... where gum came from, or how hockey was started, or even how the chinese came up with fire-crackers, right? I seriously didn't know what show it was until the other day when I saw a clip of the end of the show. That's when my head was like *DING DING DING!!! THIS IS THE SHOW!!* I just need to make sure it's the same show.

I was only trying to COOL OFF!!!