Autograph letter signed from Charles Babbage to James Spedding [manuscript], 1856 December 5.

Babbage, Charles, 1791-1871

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Charles Babbage was a British mathematician and inventor. He helped found the Analytical Society, The Royal Astronomical Society, and the Statistical Society, and was a member of the Royal Academy. He invented several mechanical calculating machines, and designed an analytical engine that anticipated the digital computer. He also helped establish the modern English postal system, compiled the first reliable actuarial tables, and invented the locomotive cowcatcher. From th...

Spedding, James, 1808-1881

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