No single person “discovered” salt ; humans have been finding and using natural salt deposits since prehistory, long before written records. The earliest clear evidence of salt production comes from around 6000 BC in what is now Romania and China, where people boiled salty spring or sea water to collect crystals. Ancient civilizations including the Egyptians, Hebrews, Greeks, Romans, and Chinese all valued salt for food, preservation, and ritual, which shows it emerged as a discovery shared by many early cultures rather than invented by one individual.