In 1714, Parliament announced that “the Discovery of the Longitude is of such Consequence to Great Britain for the safety of the Navy and Merchant-Ships as well as for the improvement of Trade” that it was offering a twenty-thousand-pound prize—the equivalent today of twelve million dollars—for a “Practical and Useful” solution. Some of the greatest scientific minds tried to solve the problem. Most hoped to use the position of the moon and stars to fix time, but in 1773 John Harrison was recognized as the winner with his more feasible solution: a three-pound, diamond-and-ruby-laden
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