👉 Autocephaly is a concept in government and administrative systems, which refers to the ability of one or more states to have their own government. In other words, it means that each state has its own legal system, but the federal government can only exercise control over certain aspects of the state's affairs. The term "autocephaly" was first introduced by the United States Supreme Court in a case involving the Federalist Papers and the U.S. Constitution in 1803. The court