Mathematician:John Greaves

Mathematician
English mathematician, astronomer and antiquarian.

Collected astrolabes and astronomical measuring devices (now in the Museum of the History of Science, Oxford).

Studied of weights and measures, and wrote a treatise on the Roman foot and denarius, and was a keen numismatist.

In $1645$ he attempted a reform of the Julian calendar which was not adopted.

Nationality
English

History

 * Born: 1602 in Alresford, Hampshire, England
 * Died: 8 October 1652 in London, England

Publications

 * 1646: Pyramidographia, or a Description of the Pyramids in Ægypt
 * 1649: A Discourse on the Roman Foot and Denarius
 * 1650: Elementa Linguae Persicae