The Mausoleum of Khawaja Ahmed Yasawi (Kazakh: Қожа Ахмет Яссауи кесенесі (Qoja Axmet Yassawï kesenesi)) is a mausoleum in the city of Turkestan, in southern Kazakhstan. The structure was commissioned in 1389 by Timur, who ruled the area as part of the expansive Timurid Empire, to replace a smaller 12th-century mausoleum of the famous Turkic poet and Sufi mystic, Khoja Ahmed Yasawi (1093–1166). However, construction was halted with the death of Timur in 1405.

Despite its incomplete state, the mausoleum has survived as one of the best-preserved of all Timurid constructions. Its creation marked the beginning of the Timurid architectural style.The experimental spatial arrangements, innovative architectural solutions for vault and domeconstructions, and ornamentations using glazed tiles made the structure the prototype for this distinctive art, which spread across the empire and beyond.

Khoja Ahmed Yasawi (Khawaja or Khwaja (Persian: خواجه pronounced khâje) corresponds to "master", whence Arabic: خواجة khawājah), also spelled as Khawajah Akhmet Yassawi, was the 12th-century head of a regional school of Sufism, a mystic movement in Islam which began in the 9th century. He was born in Ispidjab (modern Sayram) in 1093, and spent most of his life in Yasi, dying there in 1166. He is widely revered in Central Asia and the Turkic-speaking world for popularizing Sufism, which sustained the diffusion of Islam in the area despite the contemporary onslaught of the Mongol invasion. The theological school he created turned Yasi into the most important medieval enlightening center of the area. He was also an outstanding poet, philosopher and statesman. Yasawi was interred in a small mausoleum, which became a pilgrimage site for Muslims.

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