From the page: "About 10,000 years ago, ancient people discovered a product that would change lives forever. Wine had been around for a while, but after some was allowed to oxidize, vinegar was born. It became an immediate hit. The Babylonians used vinegar as a preservative, as did Ancient Greeks and Romans. Some peoples, including the Chinese, believed that vinegar was a tonic that would give them strength and vitality, as well as bestow healing properties. Legend has it that Hannibal only succeeded in crossing the Alps because his armies heated mountain boulders and doused them with vinegar, causing the rocks to crumble and clear the path.
Vinegar's magic ingredient is acetic acid, which comprises about 5 percent of the finished product. Vinegar has been produced commercially for about 2,500 years, making it one of the oldest products in use by humans. There are many different types of vinegar out there, all produced by the oxidization of alcohol into acetic acid, but white vinegar is the most useful and the most versatile by far..."