🕰#OnThisDay 330 years ago, John Harrison was born. A carpenter by trade, this self-taught clockmaker's timepieces revolutionised navigation, enabling safer and more accurate sea travel. The extraordinary story of Harrison's clocks: https://bit.ly/HarrisonsClocks | Royal Museums Greenwich
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🕰#OnThisDay 330 years ago, John Harrison was born. A carpenter b…
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