The document provides a history of artificial intelligence from 1943 to the present. It describes several important early developments, including the first paper on artificial neurons by Warren McCulloch and Walter Pits in 1943. The first AI program, called Logic Theorist, was created in 1955 by Allen Newell and Herbert Simon. There were also two "AI winters" from 1974-1980 and 1987-1993 when funding for AI research decreased. More recent developments discussed include IBM's Watson winning Jeopardy in 2011 and an android app called Google Now launching in 2012. The document concludes by stating that AI has advanced remarkably in recent decades and will continue bringing high levels of intelligence.