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