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 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