Portal:Maps

The Maps and Cartography Portal

A map is a symbolic depiction of interrelationships, commonly spatial, between things within a space. A map may be annotated with text and graphics. Like any graphic, a map may be fixed to paper or other durable media, or may be displayed on a transitory medium such as a computer screen. Some maps change interactively. Although maps are commonly used to depict geographic elements, they may represent any space, real or fictional. The subject being mapped may be two-dimensional such as Earth's surface, three-dimensional such as Earth's interior, or from an abstract space of any dimension.

Maps of geographic territory have a very long tradition and have existed from ancient times. The word "map" comes from the medieval Latin: Mappa mundi, wherein mappa meant 'napkin' or 'cloth' and mundi 'of the world'. Thus, "map" became a shortened term referring to a flat representation of Earth's surface. (Full article...)

Cartography (/kɑːrˈtɒɡrəfi/; from Ancient Greek: χάρτης chartēs, 'papyrus, sheet of paper, map'; and γράφειν graphein, 'write') is the study and practice of making and using maps. Combining science, aesthetics and technique, cartography builds on the premise that reality (or an imagined reality) can be modeled in ways that communicate spatial information effectively. (Full article...)

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A contour line (also isoline, isopleth, isoquant or isarithm) of a function of two variables is a curve along which the function has a constant value, so that the curve joins points of equal value. It is a plane section of the three-dimensional graph of the function $f(x,y)$ parallel to the $(x,y)$ -plane. More generally, a contour line for a function of two variables is a curve connecting points where the function has the same particular value.

In cartography, a contour line (often just called a "contour") joins points of equal elevation (height) above a given level, such as mean sea level. A contour map is a map illustrated with contour lines, for example a topographic map, which thus shows valleys and hills, and the steepness or gentleness of slopes. The contour interval of a contour map is the difference in elevation between successive contour lines. (Full article...)

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The following are images from various map-related articles on Wikipedia.

Image 1Blaeu's world map, originally prepared by Joan Blaeu for his Atlas Maior, published in the first book of the Atlas Van Loon (1664) (from History of cartography)
Image 2The Salviati Planisphere, a 1526 version of the Padrón Real provided by Charles V to the cardinal who officiated his wedding to Isabella of Portugal. (from History of cartography)
Image 3A general map of the world by Samuel Dunn, 1794, containing star chart, map of the Solar System, map of the Moon and other features along with Earth's both hemispheres. (from History of cartography)
Image 4Martin Behaim's Erdapfel (1492) is considered to be the oldest surviving terrestrial globe. (from History of cartography)
Image 5Infinitesimal elements on the sphere and a normal cylindrical projection (from Scale (map))
Image 6A graphical or bar scale. A map would also usually give its scale numerically ("1:50,000", for instance, means that one cm on the map represents 50,000cm of real space, which is 500 meters) (from Scale (map))
Image 7Clay tablet with map of the Babylonian city of Nippur (c. 1400 BC) (from History of cartography)
Image 8The cartographic process (from Cartographic design)
Image 9World map Theatrum Orbis Terrarum by Ortelius (1570) (from History of cartography)
Image 10Reconstruction of Pomponius Mela's world map. (from History of cartography)
Image 11Scale variation near the equator for the tangent (red) and secant (green) Mercator projections. (from Scale (map))
Image 12The world according to Hekatæus, 500 BC (from History of cartography)
Image 13The Mercator 1569 world map (from History of cartography)
Image 14The Winkel tripel projection with Tissot's indicatrix of deformation (from Scale (map))
Image 15World Map by Juan de la Cosa (1500), the first map showing the Americas. (from History of cartography)
Image 16The Tabula Rogeriana, drawn by Muhammad al-Idrisi for Roger II of Sicily in 1154. Note that the north is at the bottom, and so the map appears "upside down" compared to modern cartographic conventions. (from History of cartography)
Image 17Nautical chart by Pedro Reinel (c. 1504), one of the first based on astronomical observations and to depict a scale of latitudes. (from History of cartography)
Image 18Universalis Cosmographia, the Waldseemüller wall map dated 1507, depicts the Americas, Africa, Europe, Asia, and the Pacific Ocean separating Asia from the Americas, by the Italian Amerigo Vespucci. (from History of cartography)
Image 19Map of the “Inhabited Quarter” by Sadiq Isfahani from Jaunpur c.1647. This was one of the only surviving Indian made maps. (from History of cartography)
Image 20Map of Biscayne National Park, Florida, using a variety of point symbols, along with line and area symbols. Note the use of coordinated fill and stroke symbols for the national park area to solve the challenge of a water boundary. (from Cartographic design)
Image 21Al-Masudi's world map (10th century) (from History of cartography)
Image 22Map of the Holy Land, Pietro Vesconte, 1321. Described by Adolf Erik Nordenskiöld as "the first non-Ptolemaic map of a definite country". (from History of cartography)
Image 23The world according to Herodotus, 440 BC (from History of cartography)
Image 24The Mercator projection with Tissot's indicatrix of deformation. (The distortion increases without limit at higher latitudes) (from Scale (map))
Image 25A portrait of a Dutch mapmaker looking up intently from his charts and holding a caliper, 1714. (from History of cartography)
Image 26The Equal Earth projection (2018), an increasingly popular equal-area pseudocylindrical projection for world maps (from Cartographic design)
Image 27The Yu Ji Tu, or Map of the Tracks of Yu Gong, carved into stone in 1137, located in the Stele Forest of Xi'an. This 3 ft (0.91 m) squared map features a graduated scale of 100 li for each rectangular grid. China's coastline and river systems are clearly defined and precisely pinpointed on the map. Yu Gong is in reference to the Chinese deity described in the geographical chapter of the Classic of History, dated 5th century BC. (from History of cartography)
Image 28Lambert's normal cylindrical equal-area projection with Tissot's indicatrix of deformation (from Scale (map))
Image 29Infinitesimal elements on the sphere and a normal cylindrical projection (from Scale (map))
Image 30A map of Sikkim, India using shaded relief and hypsometric tints (a form of isarithm) to visualize terrain (from Cartographic design)
Image 31The equidistant projection with Tissot's indicatrix of deformation (from Scale (map))
Image 32The Gough Map, a road map of 14th-century Britain (from History of cartography)
Image 33A survey of Boston Harbor from Atlantic Neptune. (from History of cartography)
Image 34Illustrated map (from Cartographic design)
Image 35Scale variation for the Lambert (green) and Gall (red) equal area projections. (from Scale (map))
Image 36CIA map of Iraq, following typical labeling guidelines to maximize legibility and association (from Cartographic design)
Image 37Surviving fragment of the first World Map of Piri Reis (1513) showing parts of the Americas. (from History of cartography)
Image 38The pundit (explorer) cartographer Nain Singh Rawat (19th century) received a Royal Geographical Society gold medal in 1876. (from History of cartography)
Image 39"Mapa de los Estados Unidos de Méjico by John Distrunell, the 1847 map used during the negotiations of the Treaty of Guadalupe Hidalgo ending the Mexican–American War. (from History of cartography)
Image 40A chorochromatic map of world land cover, using hue, value, and saturation to differentiate nominal values (from Cartographic design)
Image 41A chart of an unidentified area (from History of cartography)
Image 42Possibly the oldest surviving map has been engraved on this mammoth tusk, dated to 25,000 BC, found from Pavlov in the Czech Republic. (from History of cartography)
Image 43Charles Joseph Minard's map of Napoleon's Russian campaign of 1812 (1844) has been long recognized as a masterwork of cartographic design at a time when such was difficult and rare. (from Cartographic design)
Image 44A US civil war hachure paper map made in 1867 by Cartographer Nathaniel Michler vs. modern aerial photos over Chancellorsville, Virginia (from History of cartography)
Image 45The Da Ming Hun Yi Tu map, dating c. 1390, exists in multicolour format. (from History of cartography)
Image 46A well-composed transit map of Istanbul, with a high degree of contrast between the symbols, creating a strong visual hierarchy (transit lines are and look most important), figure-ground, and selectivity (the green national rail line can be isolated when necessary). Also note the harmonizing subdued tones of green and blue in the background. (from Cartographic design)
Image 47Modern version of the Roman Tabula Peutingeriana (5th century). (from History of cartography)
Image 48The Fra Mauro map, a medieval European map, was made around 1450 by the Italian monk Fra Mauro. It is a circular world map drawn on parchment and set in a wooden frame, about two meters in diameter. (from History of cartography)
Image 49The first Japanese printed map to depict the world, including Europe and America. Printed by woodblock in 1710, composed by the Buddhist monk Rokashi Hotan. (from History of cartography)
Image 50A bar scale with the nominal scale expressed as "1:600 000", meaning 1 cm on the map corresponds to 600,000 cm=6 km on the ground. (from Scale (map))
Image 51An early Western Han dynasty (202 BC – 9 AD) silk map found in tomb 3 of Mawangdui Han tombs site, depicting the Kingdom of Changsha and Kingdom of Nanyue in southern China (note: the south direction is oriented at the top, north at the bottom). (from History of cartography)
Image 523D cartography of Washington State, Mount Rainier National Park, Pinnacle Peak trail. (from Cartographic design)
Image 53The Propaganda Map, a 1529 version of the Padrón Real now held by the Vatican Library. (from History of cartography)

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...By continuing to invoke Wilson's map and the Treaty of Sèvres we are in fact promoting an unjust notion of our homeland. And this is neither realistic nor in any way conducive to an equitable understanding with other people in the region. Even worse, to do so is to propagate the historically disastrous notion that the best interests of the Armenian people are better defined and "guaranteed" by imperialist governments than by the Armenian people themselves.

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— Monte Melkonian, The Right to Struggle

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Image of a cartographer, assumed to be Pietro Vesconte himself, from the 1318 Vesconte atlas (Museo Correr, Venice)

Pietro Vesconte (fl. 1310–1330) was a Genoese cartographer and geographer. A pioneer of the field of the portolan chart, he influenced Italian and Catalan mapmaking throughout the fourteenth and fifteenth centuries. He appears to have been the first professional mapmaker to sign and date his works regularly.

Although Vesconte was born in Genoa, he produced much of his work in Venice. He was active between 1310 and 1330, producing numerous maps. His nautical charts are among the earliest to map the Mediterranean and Black Sea regions accurately. He also produced progressively more accurate depictions of the coastlines of northern Europe, in particular that of Britain and, to a lesser extent, Ireland. (Full article...)

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Credit: Ish ishwar

Indigenous languages of the Americas (or Amerindian Languages) are spoken by indigenous peoples from the southern tip of South America to Alaska and Greenland, encompassing the land masses which constitute the Americas. These indigenous languages consist of dozens of distinct language families as well as many language isolates and unclassified languages.

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