A region: a diocese, a province or an eparchy

This article records tradition as it has been passed down and reported. Its sources are not yet part of the atlas's verified catalogue.

A religious organization and structure entry records the institutional form a religious body takes, its governance, how authority is distributed among its leadership, and how local congregations or communities relate to whatever wider body, if any, oversees them. The type exists because two traditions can hold very similar doctrine while organizing themselves in strikingly different ways, and that organizational difference often shapes a tradition's daily life as much as its beliefs do.

An entry records where a structure sits between two familiar poles, a hierarchical body with centralized authority flowing downward from a single office, and a congregational body in which authority rests largely with the local community itself, along with whatever presbyterian or connectional arrangement sits between those two extremes, delegating some authority upward to elected regional bodies while reserving other decisions to the local level.

The entry also records how a structure came to take its present form where that history is documented, since organizational structure is rarely settled once and permanently; many bodies recorded here reorganized deliberately at a specific moment in response to a schism, a merger, or a changing legal environment, and that history is often as informative as the structure's present shape on its own.

This article records tradition as it has been passed down and reported. Its sources are not yet part of the atlas's verified catalogue.

The sociologist Max Weber and, working somewhat later, Ernst Troeltsch gave the sociological study of religious organization much of the vocabulary it still uses, distinguishing a church, a large body generally at ease with the surrounding society, from a sect, a smaller, more demanding body that defines itself partly by tension with that same surrounding society, a distinction later sociologists have refined considerably but rarely abandoned outright.

Later researchers added a further category, the denomination, describing a body that has settled into stable coexistence with both the wider society and with other religious bodies around it, no longer claiming to be the sole legitimate form of its tradition the way an original sect often does. The American context, with no single established state church, produced an unusually large number of denominations organized this way, part of why the concept was developed largely by American sociologists studying American religious life.

A body's organizational category is rarely permanent; sociologists have documented the same movement shifting from sect to denomination across a generation or two as its initial tension with the surrounding society eases, and a religious organization and structure entry that records only a body's present form risks missing exactly that trajectory, which the underlying research treats as the more interesting part of the story.