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Early world maps cover depictions of the world from the Iron Age to the Age of Discovery and the emergence of modern geography during the early modern period.Old maps provide information about places that were known in past times, as well as the philosophical and cultural basis of the map, which were often much different from modern cartography.
More generally, the set of m×n matrices can be used to represent the R-linear maps between the free modules R m and R n for an arbitrary ring R with unity. When n = m composition of these maps is possible, and this gives rise to the matrix ring of n×n matrices representing the endomorphism ring of R n.
J. R. R. Tolkien's design for his son Christopher's contour map on graph paper with handwritten annotations, of parts of Gondor and Mordor and the route taken by the Hobbits with the One Ring, and dates along that route, for an enlarged map in The Return of the King [5] Detail of finished contour map by Christopher Tolkien, drawn from his father's graph paper design.
Sanborn held a monopoly over fire insurance maps for the majority of the 20th century, but the business declined as US insurance companies stopped using maps for underwriting in the 1960s. The last Sanborn fire maps were published on microfilm in 1977, but old Sanborn maps remain useful for historical research into urban geography. The license ...
Joseph Needham, a historian of China, speculated that some star charts of the Chinese Song dynasty may have been drafted on the Mercator projection; [2] however, this claim was presented without evidence, and astronomical historian Kazuhiko Miyajima concluded using cartometric analysis that these charts used an equirectangular projection instead.
According to the Köppen Climate Classification system, Kamas has a warm-summer humid continental climate, abbreviated "Dfb" on climate maps. [8] The hottest temperature recorded in Kamas is 101 °F (38.3 °C), on July 13, 2002, and the coldest is −31 °F (−35.0 °C), on December 21, 1990.
The most common purpose of a thematic map is to portray the geographic distribution of one or more phenomena. Sometimes this distribution is already familiar to the cartographer, who wants to communicate it to an audience, while at other times the map is created to discover previously unknown patterns (as a form of Geovisualization). [17]
According to Russia, the incursion involved around 300 Ukrainian troops, 11 tanks, and over 20 armored combat vehicles, [8] and was aimed in two directions: at Oleshnya in the direction of Sudzha, east-northeast of Sumy, and towards Nikolayevo-Darino, north-northeast of Sumy. [58]
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