Sunday, January 5, 2020

The first sea chart of the New Netherlands, 1656

Arnold Colom (1656)
26 years before the founding of Philadelphia.
Always amazing how accurate they were without satellite technology.
Nantucket is a little off, but the coast costline is really good. 
How did they chart these?
Trigonometry, astronomy, and very careful observations/notations on those observations

 NOAA 2020 nautical raster chart with the GeoGarage platform

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