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It was compiled by the Cassini family, mainly César-François Cassini (Cassini III) and his son Jean-Dominique Cassini (Cassini IV) in the 1700s. It was on a scale of one line to 100 toises, i.e. 1/86,400. The map was, for the time, a real innovation and a decisive technical advance. It is the first map to be based on a geodesic triangulation ...
The Cassini projection (also sometimes known as the Cassini–Soldner projection or Soldner projection [1]) is a map projection first described in an approximate form by César-François Cassini de Thury in 1745. Its precise formulas were found through later analysis by Johann Georg von Soldner around 1810. [2]
The Perry–Castañeda Library Map Collection is an extensive map collection owned by the Perry–Castañeda Library at The University of Texas at Austin. [1] Many of the maps in the collection have been scanned and are available online, and most of these maps are public domain. [2] The collection includes maps of special interest: Afghanistan
Map of Maximus Planudes (c. 1300), earliest extant realization of Ptolemy's world map (2nd century) Gangnido (Korea, 1402) Bianco world map (1436) Fra Mauro map (c. 1450) Map of Bartolomeo Pareto (1455) Genoese map (1457) Map of Juan de la Cosa (1500) Cantino planisphere (1502) Piri Reis map (1513) Dieppe maps (c. 1540s-1560s) Mercator 1569 ...
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National Grid maps began to be issued after the war, but it was some time before there was full coverage. In the interim, the public were allowed to purchase War Office Cassini Grid maps. [1] National Grid maps at 1:25,000 scale (often referred to as 2 1 ⁄ 2 inches to the mile, or just 2 1 ⁄ 2-inch maps) were not introduced until as late as ...
Henry Gault, from whom the site takes its name, put together a 250-acre farm in the Buttermilk Creek Valley, starting in 1904. At some point in the early 20th century he found extra income as an informant for early archaeological explorations in Central Texas working with the first professional archaeologist in Texas, J.E. Pearce, as well as avocational archaeologists (Alex Dienst, Kenneth ...
The company paid $5,000 for the maps and name. [1] [4] In 1964, Mapsco expanded the Dallas product and sold it out of the flower shop on Oak Lawn Avenue. In the early 60s, the Dallas Mapsco cost $4.50 each or $3.99 for pre-orders. Additionally, Rand McNally maps and other globe and map products were sold. That year, the company reported a 30% ...