author
Kâtip Çelebi
1609–1657
A curious mind from Ottoman Istanbul, this scholar turned years of reading, travel, and government service into books that mapped the world and cataloged knowledge. His work helped bring geography, history, and bibliography together in a way that still feels remarkably modern.
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About the author
Born in Istanbul in February 1609, Kâtip Çelebi—also known as Haji Khalifa—became one of the Ottoman world’s great men of letters. He worked as a clerk and served on military campaigns while still young, experiences that exposed him to the empire’s bureaucracy, libraries, and far-flung geography.
He is best remembered as a polymath: a historian, geographer, and bibliographer with a gift for organizing vast amounts of information. Among his most famous works are Kaşf al-Ẓunūn, a major bibliographical encyclopedia of books and sciences, and Cihannüma, a geographical work noted for drawing on both Islamic and European sources.
What makes him especially appealing today is the breadth of his curiosity. He wrote with a practical, searching spirit, trying to gather reliable knowledge across many fields rather than staying within a single specialty. He died in Istanbul on October 6, 1657, but his reputation as a bridge between scholarly traditions has lasted for centuries.