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  Isaac Asimov formulates the three laws of robotics which include:
 1. Robot may not injure human being
 2. Robot must obey all orders
 3. Robot must protect its own existence unless it leads to the conflict of previous 2 laws
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  William Grey Walter creates the first robot with complex behaviour
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  Alan Turing proposes a test for machine intelligence
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  Martin Minsky builds first neurocomputer
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  The "science and engineering of making intelligent machines" is described using the term 'artificial intelligence'
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  First industrial robot goes to work
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  Joseph Weizenbaum creates pioneering chatbot at MIT which can hold conversations with humans
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  General purpose mobile robot created in Stanford, Shakey which can reason about its actions
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  Chess playing computer defeats chess champion Garry Kasparov
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  Cynthia Breazeal introduces robot called KISmet which can respond and understand human feelings
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  Sony releases first robot pet dog with skills and personality
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  Qustion answering robot called Watson wins quiz show
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  Robotic vacum cleaner called iRobot learns to navigate and clean homes
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  Eugene Gootsman passes Turing Test, with 1/3 of humans believing he is human
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  Amazon releases virtual assistant with voice that helps complete shopping tasks
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  Microsoft chatbot makes offensive racist remarks on social media
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  Google A.I. AlphaGo beats world champion Ke Jie, in complex board game titled "Go"
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  Alibaba language processing AI outscores top humans at a Stanford University reading and comprehension test, scoring 82.44 against 82.304 on a set of 100,000 questions
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  Announcement of Google Duplex, a service to allow an AI assistant to book appointments over the phone