If Iran wins, it's the end of five eras.1991-2026: the unipolar era1974-2026: the petrodollar era1945-2026: the postwar era1776-2026: the union era1492-2026: the Western eraSpecifically, the end of the petrodollar (1974) would also be the end of the unipolar moment (1991) and the postwar order (1945). It would mark the moment when Eurasian powers were once again dominant over Western powers (1492). Finally, a rapid crash in the dollar's purchasing power coupled with military defeat could well break apart th ...