"1829-03-01Z"^^ . . . . "1829Z"^^ . . "Thomas Earnshaw"@en . "British watchmaker" . "Earnshaw, Thomas"@en . "1749Z"^^ . "1749-02-04Z"^^ . . . "Thomas Earnshaw (4 February 1749 in Ashton-under-Lyne \u2013 1 March 1829 in London) was an English watchmaker who following John Arnold's earlier work, further simplified the process of marine chronometer production, making them available to the general public."@en .