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...

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...

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...

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...

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

directions forming a web-like mesh. They were featured on portolan charts and other early nautical charts used in the medieval age and age of exploration in...

rectangular island in the 1424 portolan chart of Zuane Pizzigano. Thereafter, it routinely appeared in most nautical charts of the 15th century. After 1492...

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...

Aragon, to make a set of nautical charts which would go beyond the normal geographic range of contemporary portolan charts to cover the East and the West...

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...