SEA CHARTS The earliest record of a sea chart dates from 1270 when Louis IX of france studied a chart on
board a Genoese ship during the Eighth Crusade. The earliset navigators kept close to
land or drifted with ocean currents.
Once the compass was used , ships could sail more directly from one port to another.
The Chinese and Arabs may have used sea charts befor Europeans, but none survive
From about 1200, compassed and rudders were used on european ships . Navigators used
portolani, books which listed ports,landmarks, distances and navigational advice.
board a Genoese ship during the Eighth Crusade. The earliset navigators kept close to
land or drifted with ocean currents.
Once the compass was used , ships could sail more directly from one port to another.
The Chinese and Arabs may have used sea charts befor Europeans, but none survive
From about 1200, compassed and rudders were used on european ships . Navigators used
portolani, books which listed ports,landmarks, distances and navigational advice.
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