Portolan charts are nautical charts, first made in the 13th century in the Mediterranean basin and later expanded to include other regions. The word portolan...

school. The Carta Pisana portolan chart, made at the end of the 13th century (1275–1300), is the oldest surviving nautical chart (that is, not simply a...

islands. Nautical charts identified an island called "Bracile" west of Ireland in the Atlantic Ocean as far back as 1325, in a portolan chart by Angelino Dulcert...

copy of an otherwise lost map by Christopher Columbus. The map is a portolan chart with compass roses and a windrose network for navigation, rather than...

multiple lines in a web-like grid drawn on portolan charts (and other early maps). These nautical charts were used in the medieval age and age of exploration...

Aeronautical chart Automatic label placement Admiralty chart Bathymetric chart European Atlas of the Seas Nautical star Navigation room Portolan chart Dutch...

chart Flag over Varna on Guillem Soler's Portolan chart (c.1385) Approximate replica of Soler's portolan chart Flag of Bulgaria on Battista Beccario's...

notable 14th-century portolan charts, the "Dalorto" chart of 1325 and the "Dulcert" chart of 1339. The latter is the first portolan known to have been produced...

eight half-winds and red for the sixteen quarter-winds. The average portolan chart had sixteen such roses (or confluence of lines), spaced out equally...

handbooks, hence the term portolan charts. The wealth of detail contained in portolano handbooks is reflected in the portolan charts, stunningly accurate even...