Eastern Orthodox Christianity, as a significant topic within the scope of Advanced Placement World History, refers to a branch of Christianity that developed primarily in the Eastern Roman (Byzantine) Empire. It is characterized by its distinctive liturgical practices, theological doctrines, and organizational structure, typically governed by autocephalous (self-governing) churches. A key characteristic is its adherence to the decisions of the first seven ecumenical councils. For instance, the use of icons in worship and a distinctive form of church architecture are hallmarks.
The significance of understanding this particular Christian tradition lies in its considerable historical influence, particularly within Eastern Europe, Russia, and parts of the Middle East. It shaped political, social, and cultural landscapes in these regions for centuries. Its interaction and occasional conflict with Western Christianity (Roman Catholicism) profoundly affected the course of European history. Furthermore, its missionary activities contributed to the spread of literacy and artistic styles, leaving a lasting impact on the areas it reached. Its impact extended to state formation, legal codes, and artistic expression.