As we learned in my previous blog, surveying is the art of measuring land. During the 18th century colonial surveying was relatively crude. A fixed “beginning point” such as a tree or a rock was established as the starting point for the survey. A 66 foot long chain, commonly known as a Gunters Chain, was …
The map above shows the voting status for American women in 1914. Sadly, after of years of fighting for voting rights most American women had only partial suffrage or no suffrage at all. The exhibit Shall Not Be Denied opened June 4, 2019 at the Library of Congress. It explores the struggles that American women …
During World War I, the most hazardous place to be, relatively speaking, was not on the battlefield, but inside a German U-boat. Throughout the war, Germany deployed 375 Unterseebooten, i.e. U-boats or submarines; 202 were lost in action, or about fifty-four percent. Similarly, of the 17,000 sailors who served in them, about 5,100 were lost …
This is the first of two posts outlining traditional 18th and 19th surveying methods. According to the Encyclopedia Britannica, surveying is the art and science of measuring land. More precisely, it is “a means of making relatively large-scale, accurate measurements of the Earth’s surface.” The authoritative 18th century treatise on surveying, entitled “The Compleat Surveyor or …
The Library of Congress is proud to celebrate GIS Day on Wednesday, November 13th with a showcase event: In the Shadows of Notre Dame: Geographic Information Science, 3D Mapping and Cultural Heritage Preservation. The all-day series of discussions will be held from 8:30am to 3:30pm in Room LJ-119 on the first floor of the Thomas …
The title of this post does not refer to the science fiction novel of the same name by Jules Verne. It refers to the phantom island Frisland which was commonly shown on maps of the North Atlantic Ocean during the 16th and 17th centuries. Frisland never existed, however, cartographers believed that the island was real …
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 …
Board games have been played around the world for millennia. One of the oldest board games known to exist, named Senet, appears in an Egyptian hieroglyph from about 5,000 years ago! The late 18th century saw a rise in the creation of board games in Europe, many of which were educational, designed to be an …
Filled with heavy topics of war and occupation, War map: pictorial and propaganda map collection 1900-1950 contains maps and messages that frequently are pointed, unapologetic, and echo the anger and desperation of nations at war. The collection of 180 maps typifies how cartographs were used to influence popular opinion and garner support for military and political efforts …