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Portolan Chart
(redirected from Portolan)

   Also found in: Wikipedia 0.01 sec.
Portolan Chart 

(also portolano), a type of nautical chart used from the 13th to 16th centuries for commercial navigation in the Mediterranean. The coastline was indicated in detail, as were many geographical designations; the inland portions were usually left blank. For determining and plotting a ship’s course, compass grids indicating the position of the points of the compass and sailing directions were drawn at a series of points on the chart; linear scales were also shown, for the first time. In the late 15th and early 16th centuries the portolan chart was replaced by charts with a network of meridians and parallels.



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It traces the history of sea charts from thirteenth-century portolan wind charts to the diagrammatic charts used to describe pivotal phases of the sea operations during the first Gulf war, in 1991.
Portolan charts are oriented to the shores that they are described in.
These Portolan maps made trade around Europe easier for all people and put the final nail in the coffin of feudalism.
 
 
 
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