The Dirt On Clean An Unsanitized History.

For the first-century Roman, being clean meant a public two-hour soak in baths of various temperatures, a scraping of the body with a miniature rake, and a final application of oil. For the seventeenth-century aristocratic Frenchman, it meant changing his shirt once a day, using perfume to obliterate both his own aroma and everyone else's, but never immersing himself in -- horrors! -- water. By the early 1900s, an extraordinary idea took hold in...