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
Land of Promise: An Economic History of the United States statements like "what is good about the American economy is largely the result of the Hamiltonian (...) tradition, and what is bad about it is largely the result of the Jeffersonian (...) school." While naturally preoccupied with the past, "Land of Promise" also looks ahead, makes conjectures about the future of America's economy and "ends on as optimistic a note as the title suggests, though it also acknowledges that failure is an option." The title "Land of Promise" is alluding to an expression for the United States that was coined by George Washington in 1785 and partly pertained to the