The Suffavian dynasty gave place to the Afghan, and that to the short-lived but wide-spreading empire of Nadir Kooli Khan, from Delhi to the Oxus River and the Caspian Sea. Out of half a century's bloody revolutions, such as formed the normal course of the annals of Asia till Great Britain pushed its 'Peace' up from the Southern Ocean, Aga Mohammed Khan, of the Kajar clan, founded the present dynasty in 1795. His still greater nephew succeeded on his death three years after. Futteh Ali Shah became for the next thirty-eight years the close friend of the British Crown and the East India Company. Shah-in-Shah, or king of the four kings of Afghanistan, Georgia, Koordistan, and Arabistan, the ruler of Persia had now incorporated Arabistan in his own dominion, and had lost Afghanistan. But he still claimed the allegiance of the two subject-sovereigns of Georgia and Koordistan. His uncle had avenged on the people, and especially the beautiful women of Georgia, the transfer of the country by its Wali to the Russian Catherine II. Placed in the commanding centre of Western Asia, Futteh Ali almost immediately found himself the object of eager competition by the representatives of the Christian powers at Teheran. His revenue was estimated by so competent an authority as Sir John Malcolm at nearly six millions sterling. The crown jewels, chief of them the Sea of Light, or Derya-i-Noor, a diamond weighing 178 carats, were then the most valuable collection in the world; for though the Koh-i-Noor had remained with the Afghans, whence through the Sikhs it came to a greater Shah-in-Shah, the Queen-Empress of Great Britain, he still possessed not a little of Nadir's plunder of Delhi.