1. 1942 - Isaac Azimov sets out his Three Laws for Robotics
Our concept of robots as humanoids originates in science fiction, namely that of American author Isaac Asimov. His Three Laws of Robotics were codified in 1942, and state:
A robot may not injure a human being or, through inaction, allow a human being to come to harm.
A robot must obey any orders given to it by human beings, except where such orders would conflict with the First Law.
A robot must protect its own existence as long as such protection does not conflict with the First or Second Law.