1800's

Ada Lovelace meets Charles Babbage
Ada, Lady Lovelace, is born
Babbage's Analytical Engine operates for the first time
Charles Babbage first articulates his idea for a calculating engine
Charles Babbage publishes a paper describing the Analytical Engine
Christopher Sholes invents QWERTY keyboard
Dorr E. Felt patents the comptometer
Herman Hollerith designs tabulating machines for 1890 U.S. Census
Herman Hollerith is born
Herman Hollerith patents punch card technology
Hypertext pioneer Vannevar Bush is born
Nintendo is founded
Scheutz invents the printing calculator
Thomas de Colmar launches the Arithmometer
Thomas de Colmar patents the Arithmometer
Thomas J. Watson Sr. is born
US Census Bureau announces results using Herman Hollerith's machine
Willgodt T. Odhner patents the Odhner Arithmometer
William Seward Burroughs patents his calculating machine

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