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Leonard Digges

British mathematician · Academics · Lived 1515 to 1559 · aged 44

Leonard Digges was a well-known English mathematician and surveyor, credited with the invention of the theodolite, and a great populariser of science through his writings in English on surveying, cartography, and military engineering. His birth date is variously suggested as c.1515 or c.1520.

Leonard Digges is read about 7 times a day, in 8 languages.

A typical day, 30 days to 23 June 2026

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