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
Name of Argentina "equivalent and valid" denominations. Then on October 8, 1860, President Santiago Derqui decreed the official name to be República Argentina. In common speech, the country is referred to as "la Argentina" (the Argentine) in Spanish, bypassing the noun in any of the above expressions ("the Argentine [land]", "the Argentine [Republic]", etc.). Name of Argentina The name of Argentina (a Spanish adjective meaning "silvery"), traditionally called the Argentine in English, is ultimately derived from the Latin "argentum" "silver" and the feminine of the adjectival suffix -īnus, the Latin "argentum" has its origin from the ancient Greek-Hellenic word "argyro(s)", άργυρο(ς) meaning silver.