Engaging and enlightening, this title presents new evidence of transoceanic visitors to America, hundreds, even thousands, of years before the time of European exploration. Its twenty eminent contributors are experts in a variety of fields, from botany, biology, and prehistoric engineering to underwater archaeology, archaeo-astronomy, and Bronze Age warfare. In ancient times, the sea was not an impassable barrier separating our ancestors from the outside world, but a highway taking them to every corner of it. Never before and nowhere else has so much evidence proving the impact made on America by overseas visitors been assembled.