John "Longitude" Harrison (1693 - 1776)

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Birthplace: Foulby, near Wakefield, in Yorkshire
Death: Died in Red Lion Square, London, England
Managed by: Robin Forlonge Patterson
Last Updated:
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Immediate Family

About John "Longitude" Harrison

John Harrison (24 March 1693 – 24 March 1776) was a self-educated English clockmaker. He invented the marine chronometer, a long-sought device in solving the problem of establishing the East-West position or longitude of a ship at sea, thus revolutionising and extending the possibility of safe long distance sea travel in the Age of Sail. The problem was considered so intractable that the British Parliament offered a prize of £20,000 (comparable to £2.87 million in modern currency) for the solution.

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John "Longitude" Harrison's Timeline

March 24, 1693
Foulby, near Wakefield, in Yorkshire
August 30, 1718
Age 25
Age 25
November 23, 1726
Age 33
May 20, 1728
Age 35
Age 38
- Bp. 12/21/1732
March 24, 1776
Age 83
Red Lion Square, London, England