This conference explores the diverse manifestations of global Christianities from the early first to the mid-second Millennium CE and its “entanglement” with diverse local cultures and contexts. For example, what did it mean to be Christian in medieval Kiev? What enabled Christians in the Middle East to maintain their faith identity under Muslim domination? To what extent did Christianity lend a sense of homogeneity to its practitioners through its eclectic nature and vast global reach? We invite papers dealing with the theme of “entanglement” and the complex influences, interactions, and intersections within and between different varieties of global Christianity across the period 100–1500. The history of Christianity is not a monolithic narrative but a tapestry woven from diverse threads of doctrine, theology, practice, and belief. Entangled Christianities aims to unravel the individual threads that form this complex tapestry to gain a more nuanced understanding of the overall makeup of historical Christianity in its global contexts.