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Category: 19th century cartography

Plan goroda Dalʹni︠a︡go / glavnyĭ inzhener V. Sakharov.  [Russia]: Litografiia T. Daloniago, [around 1899].  Map, lithographic print.  Scale approximately 1:21,000. 0.01 [represents] 100 sagenes.  Geography and Map Division.  LC call number G7824.D3 1899 .S3

A Rare Russian Plan of Dalian

Posted by: Mike Klein

In 1898 Tsarist Russia wrested from China a long-term lease for Port Arthur (Lushun), its new-found warm-water port on the east coast restricted to use by the Russian navy.  Under pressure from Great Britain and Germany, two other European powers with concessions in China, Russia agreed to establish an open port on the southern tip …

Die Isoterhmkurven Der Nordlichen Halbkugel in Physikalischer Atlas. Heinrich Berghaus, 1845. Geography and Map Division, Library of Congress.

The First Isothermic World Maps

Posted by: Mike Klein

Called the “father of temperature mapping,” the renowned German naturalist and climatologist, Alexander von Humboldt (1769-1859) devised the concept of the isotherm, which he described in 1816 as a “curve drawn through points on a globe which receive an equal quantity of heat.” Humboldt’s initial diagram map of average temperatures appeared in 1817 in an …