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1840, 1841, 1842, 1843, 1844, 1845, 1846, 1847, 1848, and 1849. Cheffins, Charles F. and Stanford Geospatial Center. This layer is a georeferenced raster image of an historic regional map of Egypt showing the proposed railway from Cairo to the Sea of Suez, origina... Stanford Digital Repository.
1840. Thomas, William G., 1964-. This line shapefile represents the railroad network of the United States in 1840. This layer is part of the Railroads and the Making of Modern Amer... University of Nebraska--Lincoln.