Flavio Gioja
(1300-)
Italian mariner, inventor and supposedly a marine pilot
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Flavio Gioia or Gioja (c. 1300 – ?) is reputed to have been an Italian mariner, inventor, and supposedly a marine pilot. He has traditionally been credited with developing the sailor's compass, but this has been debated. However, he is credited with perfecting it by suspending its needle over a wind rose design with north designed by a fleur-de-lys, and enclosing it in a box with a glass cover. He was also said to have introduced such design, which pointed North, to defend against Charles of Anjou, the French king of Naples.
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1300 (age 725)
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