Yāqūt Shihāb al-Dīn ibn-ʿAbdullāh al-Rūmī al-Ḥamawī (1179–1229) () was a Muslim scholar of Byzantine ancestry
Life
Yāqūt (ruby or hyacinth) was the kunya of Ibn Abdullāh ("son of Abdullāh"). He was born in Constantinople, the capital of the Byzantine Empire, called in Arabic al-Rūm, whence his nisba "al-Rūmi". Captured in war and enslaved, In 1194, ‘Askar stopped his salary over some dispute and Yāqūt found work as copyist to support himself. He embarked on a course of study under the grammarian Al-‘Ukbarî. Five years later he was on another mission to Kish for ‘Askar. On his return to Baghdad he set up as a bookseller and began his writing career.
Yāqūt spent ten years travelling in Iran, Syria, and Egypt and his significance as a scholar lies in his testimony of the great, and largely lost, literary heritage found in libraries east of the Caspian Sea, being one of the last visitors before their destruction by Mongol invaders. He gained much material from the libraries of the ancient cities of Merv where he had studied for two yearsand of Balkh. Circa 1222, he was working on his "Geography" in Mosul and completed the first draft in 1224. In 1227 he was in Alexandria. From there he moved to Aleppo, where he died in 1229.