As far back as 6050 BC, salt has been an important and integral part of the world’s history, as it has been interwoven into countless civilizations. Used as a part of Egyptian religious offerings and valuable trade between the Phoenicians and their Mediterranean empire, salt and history have been inextricably intertwined for millennia, with great importance placed on salt by many different cultures. Even today, the history of salt touches our daily lives. The word "salary" was derived from the word "salt." Salt was highly valued and its production was legally restricted in ancient times, so it was historically used as a method of trade and currency. The word "salad" also originated from "salt," and began with the early Romans salting their leafy greens and vegetables. Undeniably, the history of salt is both broad and unique, leaving its indelible mark in cultures across the globe.
Most people probably think of salt as simply that white granular seasoning found in saltshakers on virtually every dining table.
It is that, surely, but it is far more. It is an essential element in the diet of not only humans but of animals, and even of many plants. It is one of the most effective and most widely used of all food preservatives. Its industrial and other uses are almost without number. Salt has great current interest as the subject of humorous cartoons, poetry and filmmaking.