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A saltpetre works or nitrary [1] is a place of production of potassium nitrate or saltpetre used primarily for the manufacture of gunpowder. The saltpeter occurs naturally in certain places like the "Caves of Salnitre" ( Collbató ) known since the Neolithic.
In 1872, the Guillermo Wendell Nitrate Extraction Company founded the saltpeter works of Santa Laura, while the region was still a part of Peru. In the same year, James Thomas Humberstone founded the "Peru Nitrate Company", establishing the works of "La Palma". Both works grew quickly, becoming busy towns characterized by English-style buildings.
Germany relied upon Chile's saltpeter for fertilizer until the British blockade during the war. ... The saltpeter works became Historic Monuments in 1970, saving them from demolition. In the 1990s ...
Saltpetre worker: A saltpetre worker produced potassium nitrate, an essential ingredient in gunpowder, by extraction from soil rich in dung and urine. [39]: 102–106 [188]: 18–25 [189] The arduous and expensive process of the saltpeter worker [190] was rendered uneconomic by cheaper imports from India. [188]: 133–135 Econom: 13: 18: Samurai
Humberstone and Santa Laura Saltpeter Works: Cultural: 1178 China ( Macao) (F) Historic Centre of Macao: Cultural: 1110 Cuba: Urban Historic Centre of Cienfuegos: Cultural: 1202 Egypt: Wadi Al-Hitan (Whale Valley) Natural: 1186 France: Le Havre, the City Rebuilt by Auguste Perret: Cultural: 1181 Iran: Soltaniyeh: Cultural: 1188 Israel
Developed for the extraction of saltpeter, it is a Chilean National Monument and part of a UNESCO World Heritage Site designated as Humberstone and Santa Laura Saltpeter Works. [ 1 ] [ 2 ] [ 3 ] History
María Elena saltpetre works. The María Elena nitrate plant is the last nitrate works still in operation in the world. It was initially named Coya Norte, but was renamed María Elena (after his wife Mary Ellen Condon) [1] by its founder Elias Anton Cappelen Smith.
The accusations are best estimated to have started around 1428 in Valais, in southern Switzerland, before sweeping throughout Europe — primarily in Germany and later England.