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Salt is a mineral composed primarily of sodium chloride (NaCl), a chemical compound belonging to the larger class of salts; salt in its natural form as a crystalline mineral is known as rock salt or halite. Salt is present in vast quantities in seawater, where it is the main mineral constituent. The open ocean has about 35 grams (1.2 oz) of solids per liter of sea water, a salinity of 3.5%.
Salt is essential for life in general, and saltiness is one of the basic human tastes. Salt is one of the oldest and most ubiquitous food seasonings, and salting is an important method of food preservation.
Some of the earliest evidence of salt processing dates to around 6,000 BC, when people living in the area of present-day Romania boiled spring water to extract salts; a salt-works in China dates to approximately the same period. Salt was also prized by the ancient Hebrews, the Greeks, the Romans, the Byzantines, the Hittites, Egyptians, and the Indians. Salt became an important article of trade and was transported by boat across the Mediterranean Sea, along specially built salt roads, and across the Sahara on camel caravans. The scarcity and universal need for salt have led nations to go to war over it and use it to raise tax revenues. Salt is used in religious ceremonies and has other cultural and traditional significance.
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Minneapolis ( (listen)) is the largest and most-populous city in the US state of Minnesota and the seat of Hennepin County, the state's most-populous county. As of 2019, Minneapolis has an estimated population of 429,606, making it the 46th-largest city in the US, the 8th-largest in the Midwestern United States, and the second-most densely populated large city in the region behind Chicago. Minneapolis and its neighbor Saint Paul make up the Twin Cities, with Minneapolis being the larger of the two. The Twin Cities metro and their surrounding suburbs contain about 3.64 million people, making it the third-largest economic and population center in the Midwest and the 16th-largest metropolitan area in the US.Minneapolis lies on both banks of the Mississippi River, just north of the river's confluence with the Minnesota River, and adjoins Saint Paul, the state's capital. The city is abundantly rich in water, with 13 lakes, wetlands, the Mississippi River, creeks and waterfalls; many connected by parkways in the Chain of Lakes and the Grand Rounds National Scenic Byway.
Ottawa ( (listen), ; Canadian French pronunciation: [ɔtawa]) is the capital city of Canada. The...
Kassel (German pronunciation: [ˈkasl̩] (listen); in Germany, spelled Cassel until 1926) is a city...
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Gevelsberg is a town in the district of Ennepe-Ruhr-Kreis, in North Rhine-Westphalia, Germany.