But that just scratches the surface when it comes to the history of salt. Ancient saltworks operations have been dated as far back as 6000 BC in China.
Salt also has a long history of medicinal and healing applications. Salt therapy — also known as halotherapy or speleotherapy — became popular in the mid-1800s, when Polish physician Feliks Boczkowski discovered that, unlike coal miners, workers in the Wieliczka salt mines seldom suffered from respiratory ailments. Ever since, people have sought out the antiviral, antibacterial and antifungal qualities of salty cave air.
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