From The Writer's Almanac: It was on this day in 1940 that Bugs Bunny made his debut in a short animated film called "A Wild Hare". He was modeled on Groucho Marx, with a carrot rather than a cigar. Mel Blanc gave him a Brooklyn accent. The story line of the cartoon involved Elmer Fudd hunting rabbits, only to have Bugs thwart him at every turn. Bugs Bunny's first line in the cartoon, when he meets Elmer Fudd, is, "What's up, doc?" It was a phrase that one of the writers remembered people saying where he grew up in Texas.