In the Christian era, the term “liturgy” indicated both service to God and to the community, thus offering a clue to understand the integral relationship between liturgy and Christian charity. The historical Atlas of the liturgy is a true geography of Christianity. This book presents an anthropological history of the Church, which calls into question architecture, art, literature, history of culture, as well as the analysis of pastoral and ecclesiastical policies considered in its connections with civil power and the organization of society. The liturgy develops in a non-linear way, and helps to understand an entire era better than the same doctrines in it flourished. A work like this is a fundamental tool for tracing the degrees of development of Christianity in different historical-anthropological contexts, but also for highlighting the expressive power of Christianity itself and of the Christian community. A bridge between different disciplines and their iconographical documentation that bonds architecture, music, politics, cartography and linguistics, ecclesiastic and monastic history.