books.google.com - Venerated as god and goddess, feared as demon and pestilence, trusted as battle omen, and used as a proving ground for optical theories, the rainbow's image is woven into the fabric of our past and present. From antiquity to the nineteenth century, the rainbow has played a vital role in both inspiring...https://books.google.com/books/about/The_Rainbow_Bridge.html?id=kZcCtT1ZeaEC&utm_source=gb-gplus-shareThe Rainbow Bridge