www.hsph.harvard.edu/nutritionsou...ures/vinegar/
Harvard School of Public Health
Not many foods play the role of both a prized cooking ingredient and household cleaner. The word vinegar derives from the French “vin aigre,” or sour wine. It has been traced back to 5000 B.C.E. in Babylon, not just for cooking but as a medicine, a preservative, and a drink to boost strength and promote wellness. Legend describes vinegar’s discovery when a forgotten wine was left in storage for several months, causing it to ferment and turn sour.