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  The Egyptian Pyramids are built.
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  Romans built a road system that was 44,000 miles long. As well as drinking water
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  Medieval and Renaissance periods lasted this long. Inventions were being created all over Europe
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  Notre Dame de Paris Cathedral was starting to be built in 1163 and was finished in 1345
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  Mariano di Iacopo wrote 2 books on mechanical engineering during the renaissance period.
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  Newcomen Steam Engine was installed
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  British Parliament passed legislation that created the board of longitude
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  The first cotton mill opened in England in 1764
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  The water frame spinned cotton into thread using water machinery
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  Developed Engine that could drive factory machinery
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  Eli Whitney invented the Cottin Gin
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  Robert Fulton completed 196 foot long steamship
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  Fredrich Koeing invented steam powered printing press
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  Transcontinental Railroad was created in 1862
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  Dynamos Machines convert rotational energy to electrical energy
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  Thomas Edison light system was installed in New York City
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  David Sarnaff became president of RCA
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  Georges Westinghouse's AC system became primary method of electrical distribution
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  Guglie Marconi began experimenting with Radio Transmitters trying to create wireless technology
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  Wright Brothers completed first powered flight in 1903
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  Henry Ford created Ford Motor company in 1903
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  RCA created first Radio Station
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  They started making transistors
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  Exprimented CRV becoming commercially important
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  RRC delivered first Univac CRV
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  IBM introduced IBM 701
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  They made the Integrated circuit
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  In the 1990's computers became more common in homes
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  in 1940' they started to build computers