Matches in DBpedia 2016-04 for { ?s ?p "Flavio Gioja or Gioia (c. 1300) was reputed to be an Italian mariner and inventor, supposedly a marine pilot, and has traditionally been credited with perfecting the sailor's compass by suspending its needle over a fleur-de-lis design, which pointed North, also enclosing the needle in a little box with a glass cover."@en }
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- Flavio_Gioja comment "Flavio Gioja or Gioia (c. 1300) was reputed to be an Italian mariner and inventor, supposedly a marine pilot, and has traditionally been credited with perfecting the sailor's compass by suspending its needle over a fleur-de-lis design, which pointed North, also enclosing the needle in a little box with a glass cover.".
- Q708202 comment "Flavio Gioja or Gioia (c. 1300) was reputed to be an Italian mariner and inventor, supposedly a marine pilot, and has traditionally been credited with perfecting the sailor's compass by suspending its needle over a fleur-de-lis design, which pointed North, also enclosing the needle in a little box with a glass cover.".