1790. Harvard Map Collection, Harvard College Library, Harvard University. Library. Open Collections Program, Arrowsmith, Aaron, 1750-1823., and McTavish, Simon, 1750-1804. This layer is a georeferenced raster image of the historic paper map entitled: Chart of the world on Mercators projection : exhibiting all the new ... Harvard Map Collection, Harvard College Library.
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1850. Harvard Map Collection, Harvard College Library, Harvard University. Library. Open Collections Program, Burr, David H., 1803-1875., and Haven, John. This layer is a georeferenced raster image of the historic paper map entitled: The world, on Mercator's projection, by David H. Burr. It was publis... Harvard Map Collection, Harvard College Library.
1882. Harvard Map Collection, Harvard College Library, Harvard University. Library. Open Collections Program, Bruno e Salomone., and Palumbo, G. This layer is a georeferenced raster image of the historic paper map entitled: Viaggio della R[a] Corvetta 'Vettor Pisani', negli anni 1882-1883-18... Harvard Map Collection, Harvard College Library.
1997. National Imagery and Mapping Agency. World Miscellaneous Transportation Lines is a line theme representing various transportation structures worldwide. Objects in this layer may have F... National Imagery and Mapping Agency.
1997. National Imagery and Mapping Agency. World Miscellaneous Transportation Lines is a line theme representing Transportation Structures located throughout the world. Features represented... National Imagery and Mapping Agency.
1997. National Imagery and Mapping Agency. World Miscellaneous Transportation Points is a point theme representing Transportation Structures located throughout the world. Features represent... National Imagery and Mapping Agency.
2004. United States. National Imagery and Mapping Agency. World Port Index, 2004 is a point theme representing port facilities worldwide. This dataset was derived from the 17th Edition of the World Port In... National Imagery and Mapping Agency.
2011. United States. National Imagery and Mapping Agency. World Port Index, 2011 is a point theme representing port facilities worldwide. This dataset was derived from the 21st Edition of the World Port In... National Imagery and Mapping Agency.
2012. Research Data Services (RDS), Columbia University Libraries and United States. National Imagery and Mapping Agency. World Port Index, 2012 is a point theme representing port facilities worldwide. This dataset was derived from the 22nd Edition of the World Port In... National Imagery and Mapping Agency.
2014. Research Data Services (RDS), Columbia University Libraries and United States. National Imagery and Mapping Agency. World Port Index, 2014 is a point theme representing port facilities worldwide. This dataset was derived from the 23rd Edition of the World Port In... National Imagery and Mapping Agency.