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The National Historical Geographic Information System (NHGIS) is a historical GIS project to create and freely disseminate a database incorporating all available aggregate census information for the United States between 1790 and 2010. The project has created one of the largest collections in the world of statistical census information, much of ...
Electronic Cultural Atlas Initiative (ECAI) is a clearinghouse for the exchange of metadata of Historical GIS. Maintained by the University of California, Berkeley. Euratlas History Maps is a historical atlas of Europe from year 1 to present days with one map per century. The maps depict sovereign states as well as administrative divisions and ...
1913 saw the beginning of the International Map of the World initiative, which set out to map all of Earth's significant land areas at a scale of 1:1 million, on about one thousand sheets, each covering four degrees latitude by six or more degrees longitude. Excluding borders, each sheet was 44 cm high and (depending on latitude) up to 66 cm wide.
The viewer was made seamless by incorporating GDAL. In addition to matching the Topozone URL 's, the website offers free download of GeoTIFFs , which Topozone had only offered for a premium. TopoQuest started adding Canadian 1:50K scale topographic maps in July 2008, and USGS 1:100K and 1:250K scale topographic maps in March 2009.
This article lists the largest human settlements in the world (by population) over time, as estimated by historians, from 7000 BC when the largest human settlement was a proto-city in the ancient Near East with a population of about 1,000–2,000 people, to the year 2000 when the largest human settlement was Tokyo with 26 million.
In some cases, the population figures refer to capital districts or Metropolises and, in the case of the People's Republic of China, to the urban population of the city in question. In many cases, the city boundaries do not correspond to the settlement structure and the boundaries of metropolitan regions and agglomerations often extend far ...
OpenStreetMap (abbreviated OSM) is a free, open map database updated and maintained by a community of volunteers via open collaboration. [4] Contributors collect data from surveys, trace from aerial photo imagery or satellite imagery, and import from other freely licensed geodata sources.
An estimate on the "total number of people who have ever lived" as of 1995 was calculated by Haub (1995) at "about 105 billion births since the dawn of the human race" with a cut-off date at 50,000 BC (beginning of the Upper Paleolithic), and inclusion of a high infant mortality rate throughout pre-modern history. [13]