On June 14, 1822, English polymath Charles Babbage (26 December 1791 – 18 October 1871) announced his invention of the Difference Engine on 14 June 1822, in a paper to the Royal Astronomical Society. The title of the paper was “Note on the application of machinery to the computation of astronomical and mathematical tables”.
It was the first that kind of machine Babbage has built, so it’s called Difference Engine 0.
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