Pamela O. Long

Nearly every empire worthy of the name—from ancient Rome to the United States—has sought an Egyptian obelisk to place in the center of a ceremonial space. Obelisks—giant standing stones, invented in Ancient Egypt as sacred objects—serve no practical purpose. For much of their history their inscriptions, in Egyptian hieroglyphics, were completely inscrutable. Yet over the centuries dozens of obelisks have made the voyage from Egypt to Rome, Constantinople, and Florence; to Paris, London, and New York.

In the fifteenth century, a Venetian mariner, Michael of Rhodes, wrote and illustrated a text describing his experiences in the Venetian merchant and military fleets. He included a treatise on commercial mathematics and treatments of contemporary shipbuilding practices, navigation, calendrical systems, and astrological ideas. This manuscript, "lost," or at least in unknown hands for over 400 years, has never been published or translated in its entirety until now.