Name of Iran their country "Arya", "Iran", "Iranshahr", "Iranzamin" (Land of Iran), "Aryānām" (the equivalent of "Iran" in the proto-Iranian language) or its equivalents. The term "Arya" has been used by the Iranian people, as well as by the rulers and emperors of Iran, from the time of the Avesta. Evidently from the time of the Sassanids (226–651 CE) Iranians have called it "Iran", meaning "the land of Aryans" and "Iranshahr". In Middle Persian sources, the name "Arya" and "Iran" is used for the pre-Sassanid Iranian empires as well as the Sassanid empire. As an example, the use of the name "Iran" for
Country can refer both to sovereign states and to other political entities, while other times it can refer only to states. For example, the "CIA World Factbook" uses the word in its "Country name" field to refer to "a wide variety of dependencies, areas of special sovereignty, uninhabited islands, and other entities in addition to the traditional countries or independent states". The word "country" comes from Old French "contrée", which derives from Vulgar Latin ("terra") "contrata" ("(land) lying opposite"; "(land) spread before"), derived from "contra" ("against, opposite"). It most likely entered the English language after the Franco-Norman invasion during the 11th