Harland Sanders was born on 9 September 1890, on a farm near Henryville, Indiana. He had a long list of jobs behind him before the one anybody remembers: by the time he was running service stations in Nicholasville and Corbin, Kentucky, he had started serving fried chicken to people passing through, and kept working at it until he had a cooking method and a blend of eleven herbs and spices he was satisfied with.
He was sixty-five when the company was incorporated. By then he was known as the Kentucky Colonel, and it stuck.
The recipe has not been written down in one place since. KFC says it does not know the whole of it either: two separate companies prepare the ingredients and a third combines them, so no one supplier holds it.