What are the importance of sodium chloride?

Answer 1

physiological requirement by the human body is immediate and life sustaining . Without salt any animal including the human animal would die and the importance of salt to any civilisation may not be underestimated. In comparison many other everyday uses are today taken for granted. In ancient times, before any chemical analysis was possible, experience and wisdom, was necessary to discern the purity of the salt for use with the many every day specific applications. To sustain a growing population, more salt was required. The fact that salt may have been available or was relatively easy to produce was a basic condition which allowed a population to increase and develop. . Where salt was not available..... populations stagnated and even disintegrated

Rome did not really fall ... it was moved to Byzantium -Turkey where the salt supply was relatively available from the Cappadocia region - the Tatta - TUZ GOLU salt lake and the Danube delta