self-educated
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World History
John Harrison: Time’s Unsung Hero and the Quest for Longitude
John Harrison (3 April 1693 – 24 March 1776) a self-educated English carpenter and clockmaker who invented the marine chronometer,…
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John Harrison (3 April 1693 – 24 March 1776) a self-educated English carpenter and clockmaker who invented the marine chronometer,…
Read More »