KFC Corporation, based in Louisville, Kentucky, is one of the few brands in America that can boast a rich, decades-long history of success and innovation. It all started with one cook who created a soon-to-be world famous recipe more than 70 years ago, a list of secret herbs and spices scratched out on the back of the door to his kitchen. That cook was Colonel Harland Sanders of course, and now KFC is the world's most popular chicken restaurant chain, specializing in that same original recipe, along with extra crispy chicken, home-style sides and buttermilk biscuits.