Joseph Harris 1704
- occupation:
- Assay-master at the mint, Astronomer
- Nationality:
- Welsh
- born in:
- Trefecca, Powys, Wales, United Kingdom
1718 - blacksmith
1724 - met Halley, the Astronomer-Royal
1725 - testing mathematical navigation instruments on West Indies voyage
1730-1732 - testing mathematical navigation instruments on West Indies voyage
1729 - writes ‘The Description and Uses of the Celestial Globe and Orrery’
1730 – writes ‘A Treatise on Navigation’
1757 – writes ‘An Essay Upon Money and Coins’
1775 - Harris's 'A Treatise upon Optics' is posthumously published
