A state religion (also called an official religion, established church or state church) is a religious body or creed officially endorsed by the state. Practically, a state without a state religion is called a secular state. The term state church is associated with Christianity, and is sometimes used to denote a specific national branch of Christianity. Closely related to state churches are what sociologists call ecclesiae, though the two are slightly different. State religions are examples of the official or government-sanctioned establishment of religion, as distinct from theocracy. It is also possible for a national church to become established without being under state control.