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Freiberg Mining Field
The Freiberg Mining Field (german: Freiberger Revier or ''Freiberger Bergbaurevier'') is an ore field which is located on an ore deposit of precious and non-ferrous metals roughly 35 x 40 kilometres in area in the lower Eastern Ore Mountains of Saxony, Germany. Mining has been carried out here since the last third of the 12th century. Parts of this region, along with other nearby sites in the Erzgebirge/Krušnohoří Mining Region were inscribed on the UNESCO World Heritage List in 2019 because of its testimony of continuous extraction for centuries and its status as the nexus for many technological developments in ore mining. The mining region, in the broadest sense, is centred on Freiberg, but extends beyond that town's borough into the municipalities of Halsbrücke, Hilbersdorf, Bobritzsch, Weißenborn, Oberschöna and the boroughs of Brand-Erbisdorf and Großschirma. In a narrower sense the name refers to the area covered by the Freiburg and Halsbrück mining territories ( ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
20070616 AlteElisabeth
7 (seven) is the natural number following 6 and preceding 8. It is the only prime number preceding a cube. As an early prime number in the series of positive integers, the number seven has greatly symbolic associations in religion, mythology, superstition and philosophy. The seven Classical planets resulted in seven being the number of days in a week. It is often considered lucky in Western culture and is often seen as highly symbolic. Unlike Western culture, in Vietnamese culture, the number seven is sometimes considered unlucky. It is the first natural number whose pronunciation contains more than one syllable. Evolution of the Arabic digit In the beginning, Indians wrote 7 more or less in one stroke as a curve that looks like an uppercase vertically inverted. The western Ghubar Arabs' main contribution was to make the longer line diagonal rather than straight, though they showed some tendencies to making the digit more rectilinear. The eastern Arabs developed the digit f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
