In the eighteenth century, missionaries of the radical, pietist Moravian Church wandered from Germanic Europe to the edges of the known world in search of tolerance and a closer relationship to God. This open-minded, cosmopolitan undertaking led to unintended consequences, however, both for the Moravians and for the other persecuted peoples-European, African, and Indigenous-they sought to convert. Religion on the Margins examines the complexities of early modern Moravians as a cosmopolitan community focused on an eschatological global vision while having to negotiate diverse cultures and, most importantly, the institution of slavery. Drawing on a transatlantic archive of teachings, letters, and diaries, Benjamin M. Pietrenka sheds light on how a professedly anti-colonial cast of characters navigated and found themselves taking part in a deeply colonial narrative. Ultimately, Pietrenka shows how the Moravians, operating from within the constraints of mission work, became complicit in th