Strong pick for readers of maritime history, museum studies, or global trade courses who appreciate material culture alongside political context. Works well in units on portolan charts and Indian Ocean networks; assign selected chapters with primary sources or map facsimiles. Notes on suitability: brief references to colonial violence and shipwrecks, non-graphic; footnotes are dense but the main narrative is clear. Conservation-minded students will connect with the Lisbon passages featuring a young practitioner.
William Radcliffe, a historian of exploration and material culture, traces the odyssey of a deceptively simple instrument—the magnetic compass—across centuries. From a Song-dynasty water compass in Quanzhou to a gimbaled box lifted from a wreck off the Azores, he follows how a needle's tremble reordered economies and empires. Once revered by court astronomers and whispered over by pilots, the compass became a tool of merchants and marauders, guiding carracks into Kilwa, cannon toward Goa, and surveyors across contested interiors. Its spread is inseparable from the routes of power we laid, the charts we drew over other people's homelands, and the debts still unpaid.
In 2016, in the stacks of the Torre do Tombo in Lisbon, Radcliffe met Mateus Andrade, a young conservator from Mindelo stabilizing a cracked rosewood compass rumored to have sailed on the São Bento. Their conversations—about rust, memory, and who gets to keep the tools that changed the world—anchor a journey through Majorcan portolan workshops, the shipyards of Ribeira das Naus, Zheng He's treasure fleets, Ibn Majid's verses, and Fra Mauro's circular world map. Along the way: night crossings with Lampedusa fishers, a wind-scoured museum in Mombasa, a Recife classroom building paper astrolabes. Compass of the Old World braids biography, science, and archive into a history of direction itself, asking how we came to trust a sliver of iron to tell us where to go—and what it cost those who stood in the way of its arrow.