Haji Khalifa
- Died
- 1067 AH
- Born in
- Constantinople / Istanbul
Haji Khalifa (1017–1067 AH / 1609–1657 CE; also known as Katib Chelebi) was an Ottoman Hanafi scholar, historian, and bibliographer based in Constantinople, best known for his monumental bibliographic encyclopedia Kashf al-Zunun an Asami al-Kutub wa al-Funun (The Removal of Doubts Concerning the Names of Books and the Sciences).
Background and Early Career
His full name was Mustafa ibn Abd Allah al-Qustantini al-Hanafi. He was known among local scholars as Katib Chelebi (or Mulla Katib Chelebi) and among chancery officials as Haji Khalifa (or al-Hajj Khalifa). He was born in Constantinople in Dhu al-Qi'dah 1017 AH (1609 CE), though an alternate report places his birth in 1004 AH.
His father was a soldier in the Ottoman army. Haji Khalifa entered the imperial administrative service as a military clerk in Anatolia, witnessed the siege of Erzurum, and accompanied his father on campaign toward Baghdad. When his father died in Mosul, he relocated to Diyarbakir before returning to Constantinople. He subsequently advanced through chancery posts, serving on additional campaigns to Baghdad and Hamadan. He accompanied Muhammad Pasha, the governor of Aleppo, to Mecca to perform the pilgrimage, after which he became known as Haji, having previously earned the title Khalifa while serving as an assistant clerk.
Education and Scholarly Life
Haji Khalifa studied under several prominent Ottoman scholars, attending the lectures of Qadizade and studying with Abd Allah al-Kurdi, a professor at the Hagia Sophia mosque, as well as the preacher Wali al-Din al-Mintashawi.
After witnessing the Cretan War, he withdrew from active military campaigns in his final years to dedicate himself to teaching and scholarship. Supported by inheritances from relatives, he actively acquired manuscripts and surveyed the holdings of major book markets and libraries in Constantinople. Beyond his bibliographic catalog, he compiled the extensive biographical dictionary Sullam al-Wusul ila Tabaqat al-Fuhul (The Ladder of Attainment to the Ranks of the Eminent Masters) and the critical treatise Mizan al-Haqq fi Ikhtiyar al-Ahaqq (The Balance of Truth in the Choice of the Most Valid).
Death
Haji Khalifa died in Constantinople on 27 Dhu al-Hijjah 1067 AH (1657 CE); another report dates his death to 1066 AH.
Answer updated
List of Works
Kashf al-Zunun 'an Asami al-Kutub wa al-Funun (The Removal of Doubts Concerning the Names of Books and the Sciences) is a comprehensive Arabic bibliographic encyclopedia. The work catalogs Islamic literature across various disciplines, documenting titles primarily in Arabic as well as in Persian and Turkish to preserve scholarly heritage and benefit later generations.
Sullam al-Wusul ila Tabaqat al-Fuhul (The Ladder of Attainment to the Ranks of the Eminent Masters) is an extensive Arabic biographical dictionary. Serving as a biographical counterpart to Kashf al-Zunun 'an Asami al-Kutub wa-l-Funun, it contains approximately 8,561 entries documenting prominent figures across the Islamic world, including the Mashriq, Maghrib, Central Asia, and India.