The reform of the liturgical books conducted in Muscovite Russia in the mid-17th century was an alignment of Russina liturgical usage with contemporary Greek pr

Russian Orthodoxy Resurgent is the first book to fully explore the expansive and ill-understood role that Russia's ancient Christian faith has played in the fal

This book describes the role of Byzantine diplomacy in the emergence of Moscow in the fourteenth century.

Established in 1800, edinoverie (translated as "unity in faith") was intended to draw back those who had broken with the Russian Orthodox Church over ritual ref

Sacrosanctum Concilium (SC) was the first document promulgated by the Second Vatican Council. The impact of this document was broad and ecumenical—the liturgi