User:Alþykkr/Carta Pisana

The Carta Pisana is a map made at the end of the 13th century, about 1275-1300. It shows the whole Mediterranean and a part of the atlantic coast, from the north of present-day Morocco to present-day Holland. It is the oldest surviving nautical chart (that is, not simply a map but a document showing accurate navigational directions), and also the oldest medieval map known. Its author is anonymous, but it was nearly certainly made in Genoa. It is a portolan chart, showing a detailed survey of the coasts, and many ports, but bears no indication on the topography or toponymy of the inland.

Detailed content
The density of the ports referenced on the map is the highest for the coast of the Tyrrhenian Sea, and the lowest for that of the Ionian Sea. This is further evidence that the map is of genoese origin, since Genoa], at this time, were a major power in the [[Tyrrhenian Sea . As to the date of the map, it is partly indicated by the mention of the town of Manfredonia, which was founded by king Manfred of Sicily in 1256.

It is accompanied by a chart showing sixteen wind directions