Task: Question Answering
Input (English): Context: Abdullah Khan (Abdollah Khan Ozbeg) (1533/41598), known as "The old Khan", was an Uzbek/Turkoman ruler of the Khanate of Bukhara (15001785). He was the last Shaybanid Dynasty Khan of Bukhara, from 1583 until his death., Bukhara , is one of the cities (viloyat) of Uzbekistan. Bukhara is a city-museum, with about 140 architectural monuments. The nation's fifth-largest city, it had a population of approximately 247,644. Humans have inhabited the region around Bukhara for at least five millennia, and the city has existed for half that time. Located on the Silk Road, the city has long served as a center of trade, scholarship, culture, and religion. UNESCO has listed the historic center of Bukhara (which contains numerous mosques and madrassas) as a World Heritage Site., Khanate of Bukhara ( or Khanate of Bukhoro ) ( Persian :     ; Uzbek : Buxoro Xonligi ) was a Central Asian state from the second quarter of 16th century to the late 18th century . Bukhara became the capital of the short - lived Shaybanid empire during the reign of Ubaydallah Khan ( 1533 -- 1540 ) . The khanate reached its greatest extent and influence under its penultimate Shaybanid ruler , Abdullah Khan II ( r. 1577 -- 1598 ) . In the 17th and 18th centuries , the Khanate was ruled by the Janid Dynasty ( Astrakhanids or Ashtarkhanids ) . They were the last Genghisid descendants to rule Bukhara . In 1740 , it was conquered by Nadir Shah , the Shah of Iran . After his death in 1747 , the khanate was controlled by the non-Genghisid descendants of the Uzbek emir Khudayar Bi , through the prime ministerial position of ataliq . In 1785 , his descendent , Shah Murad , formalized the family 's dynastic rule ( Manghit dynasty ) , and the khanate became the Emirate of Bukhara . The Manghits were non-Genghisid and took the Islamic title of Emir instead of Khan since their legitimacy was not based on descent from Genghis Khan ., Subject: khanate of bukhara, Relation: inception, Options: (A) 140 (B) 1500 (C) 1533 (D) 1540 (E) 1577 (F) 1598
Output (English): 1500