20th century 189 1979-1997 137 To 640 110 1997- 102 1941-1979 71 21st century 58 Revolution, 1979 52 19th century 34 1900-1999 32 Qajar dynasty, 1794-1925 29 To 1500 22 Mohammad Reza Pahlavi, 1941-1979 20 1905-1911 15 640-1256 14 16th-18th centuries 13 1925-1979 13 2000-2099 12 Pahlavi dynasty, 1925-1979 12 Ṣafavid dynasty, 1501-1736 12 559 B.C. B.C.-330 B.C. 10 559-330 B.C. 10 Since 1979 10 Ṣafavid dynasty, 1501-1736 10 approximately 423 B.C.-401 B.C. 10 17th century 9 1919-1980 9 1256-1500 8 1900-2099 7 1945- 7 1945-1979 7 1979- 7 2003- 7 356 B.C.-323 B.C. 7 Early works to 1800 7 Since 1997 7 1800-1899 6 1957- 6 1977-1981 6 2009 6 247 B.C.-224 A.D. 6 640-1500 6 1880-1967 5 519 B.C.-465 B.C. or 464 B.C. 5 Expedition of Cyrus, 401 B.C. 5 To 622 5 -530 B.C. or 529 B.C. 4 1501-1736 4 1653-1713 4 1800-1999 4 1831-1896 4 1878-1944 4 1926-1984 4 1979 4 1993- 4 548 B.C.-485 B.C. 4 -1030 3 10th century 3 1498-1761 3 1565-1635? 3 1571-1629 3 1581?-1628 3 1895-1989 3 18th century 3 1918-1945 3 1932-2018 3 1945-1989 3 1946- 3 1953- 3 1969- 3 1980- 3 1981-1989 3 1989- 3 2009-2017 3 Expedition of Cyrus, 401 B.C 3 Macedonian Conquest, 334-325 B.C 3 Macedonian Conquest, 334-325 B.C. 3 Ottoman Empire, 1288-1918 3 To 1258 3 To 634 3 active 10th century 3 0590?-0530 av. J.-C.) 2 1140 or 1141-1202 or 1203 2 1254-1323? 2 13th century 2 1414-1492 2 1564-1630? 2 1605-1689 2 1658 or 9-1694 2 1688-1747 2 16th century 2 1794-1925 2 1859-1952 2 1889-1976 2 1892-1962 2 1910-1936 2 1932- 2 1938- 2 1966-1998 2 1976- 2 1979 - 1997 2