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Satellite view of Africa 1916 physical map of Africa. The average elevation of the continent approximates closely to 600 m (2,000 ft) above sea level, roughly near to the mean elevation of both North and South America, but considerably less than that of Asia, 950 m (3,120 ft). In contrast with other continents, it is marked by the comparatively ...
A city block, residential block, urban block, or simply block is a central element of urban planning and urban design. In a city with a grid system, the block is the smallest group of buildings that is surrounded by streets. City blocks are the space for buildings within the street pattern of a city, and form the basic unit of a city's urban ...
In most US cities, a city block is between 1 ⁄ 16 and 1 ⁄ 8 mi (100 and 200 m). In Manhattan, the measurement "block" usually refers to a north–south block, which is 1 ⁄ 20 mi (80 m). Sometimes people living in places (like Manhattan) with a regularly spaced street grid will speak of long blocks and short blocks.
Africae Tabula Nova ("New Map of Africa") is a map of Africa published by Abraham Ortelius in 1570. It was engraved by Frans Hogenberg and included in Ortelius's 1570 atlas Theatrum Orbis Terrarum ("Theater of the World"), commonly regarded as the first modern atlas. The atlas was printed widely in seven languages and 31 total editions between ...
A workers' village (2570–2500 BC) at Giza, Egypt, housed a rotating labor force and was laid out in blocks of long galleries separated by streets in a formal grid. Many pyramid-cult cities used a common orientation: a north–south axis from the royal palace and an east–west axis from the temple, meeting at a central plaza where King and ...
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 Fra Mauro map of 1459 shows a more detailed picture of Africa as a continent, including the Cape of Diab at its southernmost point, reflecting an expedition of 1420. Sebastian Münster 's Cosmographia (1545) labels the Cape of Good Hope , reached by Bartolomeu Dias in 1488, as caput bonae spei .
One common approach categorizes Africa directionally, e.g., by cardinal direction (compass direction): North Africa lies north of the Sahara and runs along the Mediterranean coast. West Africa is the portion roughly west of 10° east longitude, excluding Northern Africa and the Maghreb. West Africa contains large portions of the Sahara Desert ...