The present volume is a result of an international symposium on the encounters between Jesuits and Protestants in Asia and the Americas, which was organized by Boston College’s Institute for Advanced Jesuit Studies at Boston College in June 2017. In Asia, Protestants encountered a mixed Jesuit legacy: in South Asia, they benefited from pioneering Jesuit ethnographers while contesting their conversions; in Japan, all Christian missionaries who returned after 1853 faced the equation of Japanese nationalism with anti-Jesuit persecution; and in China, Protestants scrambled to catch up to the cultural legacy bequeathed by the earlier Jesuit mission. In the Americas, Protestants presented Jesuits as enemies of liberal modernity, supporters of medieval absolutism yet master manipulators of modern self-fashioning and the printing press. The evidence suggests a far more complicated relationship of both Protestants and Jesuits as co-creators of the bright and dark sides of modernity, including the public sphere, public education, plantation slavery, and colonialism.