Editing Autonomous robot (section)

===Early robots===
The first autonomous robots  were known as [[Elmer and Elsie (robots)|Elmer and Elsie]], constructed in the late 1940s by [[William Grey Walter|W. Grey Walter]]. They were the first [[robots]] programmed to "think" the way biological brains do and were meant to have [[free will]].<ref name=IngalisArkel>Ingalis-Arkell, Esther [https://io9.gizmodo.com/5890771/the-very-first-robot-brains-were-made-of-old-alarm-clocks "The Very First Robot Brains Were Made of Old Alarm Clocks"] {{Webarchive|url=https://web.archive.org/web/20180908015719/https://io9.gizmodo.com/5890771/the-very-first-robot-brains-were-made-of-old-alarm-clocks |date=2018-09-08 }}, 7 March 2012.</ref> Elmer and Elsie were often labeled as tortoises because of how they were shaped and the manner in which they moved. They were capable of [[phototaxis]], the movement that occurs in response to light stimulus.<ref name=NormaJeremy>[Norman, Jeremy, [http://www.historyofinformation.com/expanded.php?id=854 "The First Electronic Autonomous Robots: the Origin of Social Robotics (1948 – 1949)"], Jeremy Norman & Co., Inc., 02004-2018.</ref>