I am going to begin by getting something off my chest! Someone should have reminded Albert Eisenstein how to use a comb. He knew what a comb was for when he was younger.(Now that I have finished with my little rant I can move forward.)
Albert Eisenstein had ADHD. While he may of had to adjust the way he did things, he was certainly successful. I am not certain that they said he had it until they examined his behaviors as an adult.