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A world map is a map of most or all of the surface of Earth. World maps, because of their scale, must deal with the problem of projection. Maps rendered in two dimensions by necessity distort the display of the three-dimensional surface of the Earth. While this is true of any map, these distortions reach extremes in a world map.
The United Nations geoscheme is a system which divides 248 countries and territories in the world into six continental regions, 22 geographical subregions, and two intermediary regions. [1] It was devised by the United Nations Statistics Division (UNSD) based on the M49 coding classification . [ 2 ]
U.S. Census Bureau regions and divisions. Since 1950, the United States Census Bureau defines four statistical regions, with nine divisions. [1] [2] The Census Bureau region definition is "widely used... for data collection and analysis", [3] and is the most commonly used classification system.
Image:Blank US Map with borders.svg, a blank states maps with borders. Image:BlankMap-USA.png, a map with no borders and states separated by transparency. Image:US map - geographic.png, a geographical map. On Wikimedia Commons, a free online media resource: commons:Category:Maps of the United States, the category for all maps with subcategories.
Image:BlankMap-World.png – World map, Robinson projection centered on the meridian circa 11°15' to east from the Greenwich Prime Meridian. Microstates and island nations are generally represented by single or few pixels approximate to the capital; all territories indicated in the UN listing of territories and regions are exhibited.
Waldseemüller's 1507 map of America re-drawn on an equirectangular projection and on the same uniform scale as that of Schöner of 1515, so as to be readily comparable. [7] Schöner's 1515 map of America re-drawn on an equirectangular projection and on the same uniform scale as that of Waldseemüller of 1507, so as to be readily comparable. [7]
The United Nations geoscheme for the Americas is an internal tool created and used by the UN's Statistics Division (UNSD) for the specific purpose of UN statistics. [1]The following is an alphabetical list of countries in the Americas grouped by UNSD geoscheme subregion and (if applicable) intermediate region. [1]
North America can also be divided into four great regions: [citation needed] Great Plains: stretching from the Gulf of Mexico to the Canadian Arctic; the geologically young, mountainous west: including the Rocky Mountains, the Great Basin, California and Alaska; the raised but relatively flat plateau of the Canadian Shield in the northeast;