This book traces the compelling and often muddled history of Judaism and Christianity through their formative years, from the shared background of first-century Judaism and all its varieties to the diverse interactions and experiences of Jews, Christians and Jewish-Christians under centuries of Roman rule. More than a dozen chapters, authorized by the worlds'foremost scholars in early Judaism and Christianity, tell the story of a complex and evolving theparting of the ways that occurred in different ways in different places and at different times.