Some historians have argued that ancient Israel originally practiced a form of monolatry or henotheism. The term "monolatry" was perhaps first used by Julius Wellhausen. Mark S. Smith refers to this stage as a form of monolatry. Some scholars claim the Torah (Pentateuch) shows evidence of monolatry in some passages. Monolatry became enforced during the reforms of King Josiah in 621 BCE.