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In 1641, Samuel Winslow was granted the first patent in North America by the Massachusetts General Court for a new process for making salt. [ 1 ] [ 2 ] See also
Salt comes from two main sources: sea water, and the sodium chloride mineral halite (also known as rock salt). Rock salt occurs in vast beds of sedimentary evaporite minerals that result from the drying up of enclosed lakes, playas, and seas. Salt beds may be up to 350 metres (1,150 ft) thick and underlie broad areas.
The shoulder-shaped wire hanger, was inspired by a coat hook invented in 1869 by O. A. North of New Britain, Connecticut. [187] 1870 Bee smoker. Firing a bee smoker. A bee smoker, usually called simply a smoker, is a device used in beekeeping to calm honey bees. It is designed to generate smoke from the smouldering of various fuels, hence the name.
In 1930, Mahatma Gandhi led a crowd of 100,000 protestors on the "Dandi March" or "Salt Satyagraha", during which they made their own salt from the sea as a demonstration of their opposition to the colonial salt tax. This act of civil disobedience inspired numerous Indians and transformed the Indian independence movement into a national ...
Morton Salt is an American food company producing salt for food, water conditioning, industrial, agricultural, and road/highway use. Based in Chicago, [1] the business is North America's leading producer and marketer of salt. It is a subsidiary of holding company Stone Canyon Industries Holdings, Inc.
It was refined from the ashes of broadleaved trees and produced primarily in the forested areas of Europe, Russia, and North America. Although methods for producing artificial alkalis were invented in the late 18th century, these did not become economical until the late 19th century and so the dependence on organic sources of potash remained.
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13th century: Earliest documented snow goggles, a type of sunglasses, made of flattened walrus or caribou ivory are used by the Inuit peoples in the arctic regions of North America. [361] [362] In China, the first sunglasses consisting of flat panes of smoky quartz are documented. [363] [364] 13th century - 14th century: Worm gear cotton gin in ...