Since its inception in November 1963, the British science fiction television series, Doctor Who, has exerted an enormous impact on the world of science fiction (over 1500 books have been written about the show). The series follows the adventures of a mysterious Time Lord from the distant planet Gallifrey who travels through time and space to fight evil and injustice. Along the way, he has visited Rome under the rule of Nero, played backgammon with Kubla Khan, and participated in the mythic gunfight at the O.K. Corral. The series dealt with continuing characters, adult genre principles, and futuristic philosophies.