Timeline of Iranian (Persian) history from the age of Zarathustra, the founder of Zoroastrianism, through the death of the Ayatollah Khomeini.
41. 1848-1896 Reign of Nasser al-Din Shah, modernizer king
42. 1856-1857 Anglo-Persian War; Persia gives up claim to city of Herat
43. 1881 Russia takes Turkmenistan; Persia under strong British influence
44. 1905-1911 Persian Constitutional Revolution; constitutional monarchy founded
45. 1907 Anglo-Russian Agreement; two powers set up spheres of influence in Persia
46. 1914-1918 World War I, Persia occupied by British, Russian, and Ottoman troops
47. 1921 Reza Shah Pahlavi ousts Ahmad Shah in coup
48. 1925 Pahlevi Dynasty formally founded, constitutional monarchy dissolved
49. 1941 Reza Shah refuses to expel Germans; he is ousted by British and Soviets
50. 1941-1979 Reign of Mohammad Reza Pahlavi, Reza Shah's son