1. SRTM30 enhanced global map : Slope Date: 2003 Geographic region: EarthEastern HemisphereWestern HemisphereNorthern HemisphereSouthern HemisphereAfricaAsiaAustraliaEuropeNorth AmericaSouth AmericaPolar regions180.00000090.000000-90.000000-180.000000 Extent: E. Rodríguez, et. al
2. World Map Showing Routes of Exploration and Discovery, 1850 (Raster Image) Date: 200911 Geographic region: EarthNorthern HemisphereSouthern HemisphereEastern HemisphereWestern HemisphereAfricaAsiaAustraliaEuropeNorth AmericaSouth AmericaArctic regions180.00000086.438634-84.990843-180.000000
3. World Map Showing Routes of Exploration and Discovery, 1853 (Raster Image) Date: 200910 Geographic region: EarthNorthern HemisphereSouthern HemisphereEastern HemisphereWestern HemisphereAfricaAsiaAustraliaEuropeNorth AmericaSouth AmericaArctic regions180.00000082.204539-82.110711-180.000000
4. World Map, 1801 (Raster Image) Date: 200901 Geographic region: EarthNorthern HemisphereSouthern HemisphereEastern HemisphereWestern HemisphereAfricaAsiaAustraliaEuropeNorth AmericaSouth AmericaArctic regions180.00000084.263421-78.259774-180.000000
5. World Map, ca. 1774 (Raster Image) Date: 200910 Geographic region: EarthNorthern HemisphereSouthern HemisphereEastern HemisphereWestern HemisphereAfricaAsiaAustraliaEuropeNorth AmericaSouth AmericaArctic regions180.00000084.976331-76.321183-180.000000
