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The Rupes Nigra ("Black Rock"), a phantom island, was believed to be a black rock located at the Magnetic North Pole or at the geographic North Pole itself. Described by Gerardus Mercator as 33 French miles in size, it provided a supposed explanation for why all compasses point to this location.
Inventio Fortunata (also Inventio Fortunate, Inventio Fortunat or Inventio Fortunatae), "Fortunate, or fortune-making, discovery", is a lost book, probably dating from the 14th century, containing a description of the North Pole as a magnetic island (the Rupes Nigra) surrounded by a giant whirlpool and four continents.
According to certain authors, the Jabal Qaf of Muslim cosmology is a version of Rupes Nigra, a mountain whose ascent —such as Dante's climbing of the Mountain of Purgatory, represents the pilgrim's progress through spiritual states. [8]
Rupes Nigra: 14th century: A magnetic, black island at the exact Magnetic North Pole, invented as an explanation for why all compasses point north. Sandy Island: 1774: Another phantom, small island to the west of New Caledonia that was recorded on many maps until 2012, when a surveying ship passed by and disproved its existence.
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Castelnuovo Nigra, a comune (municipality) in the Province of Turin in the Italian region Piedmont; Porta Nigra, a large Roman city gate in Trier, Germany; Rupes Nigra, a phantom island, was believed to be a 33-mile-wide magnetic island of black rock located at the Magnetic North Pole
Karakithay id est nigra Kathaya. Karakithai, that is to say Black Cathay. 40°N,115°E Pamer altissima pars totius continentis. M. Paul Ven : lib.5 Pamer, the highest part of the whole continent, M. Polo, the Venetian, Bk.9. 45°N,85°E Mare de Sala, vel de Bachu, Ruthenis Chualenske more, olim Casitum et Hircanum.
Rupes Nigra; S. Santa's workshop; USS Skate (SSN-578) Soviet–Canadian 1988 Polar Bridge Expedition; T. Transglobe Expedition This page was last edited on 12 June ...