Vinegar is as old as civilization. Records of humans using vinegar reach back to at least 5000 B.C. when the Babylonians were making wine—and vinegar—from dates. We've used vinegar for thousands of years, as a preservative, a pickling agent, a flavoring, and as medicine.
We still love the stuff. We use it on pasta and veggies, in marinades and dressings. Here in the Northwest, we have access to good local wine and excellent local cider, with which to make our own vinegars (for the adventurous) and any number of locally grown fruits, herbs, and other seasonings, to infuse otherwise ordinary grocery-store vinegar with some extra flavor and beauty.