Looking back at this episode, we forgot to even really discuss the origins of the carnival. But, it's probably nothing you haven't already seen on the History Channel. In case you missed every show that's been on about Mardi Gras, check out this great article from Wikipedia about the different carnivals and festivals of the world: http://en.wikipedia.org/wiki/Carnival.
Links of Interest (lots of links this time, we covered a LOT of food!):