Quest for longitude

Latitude is measured by your position north or south of the equator but what about longitude? How is your east or west position defined? Discover all about the quest to establish longitude and why it was important, the men behind its discovery, and the establishment of the Prime Meridian at Greenwich.

From the satirical to the serious, the quest for longitude provoked a wealth of responses, some more worthy of attention than others.

Who was John Harrison, and how did his inventions help to solve the problem of finding longitude at sea?

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