The Ispah rebellion () were a series of civil wars in the middle of 14th century in Fujian during the Yuan dynasty. The term Ispah might derive from the Persian word "سپاه" (sepâh), meaning "army" or "Sepoy". Thus, the rebellion is also known as the Persian Sepoy rebellion (波斯戍兵之亂; Bōsī Shùbīng zhī Luàn) in Chinese documents. Under Yuan rule, more Semu people (Arab and Persian Muslims) migrated to the Chinese port city of Quanzhou. In 1357, a predominantly Muslim army led by two Quanzhou Persian Shi'a Muslims, Sayf ad-Din (賽甫丁) and Amir ad-Din (阿迷里丁), revolted against the Yuan. The rebel army seized control of Quanzhou, Putian, and even reached the provincial capital Fuzhou. In 1362, the Ispah army collapsed into internal conflict, Yawuna (那兀纳), a Quanzhou Arab Sunni Muslim official, became the new leader of the Ispah army. In 1366, it was eventually crushed by the ethnic Han commander Chen Youding (陈友定) who was loyal to the Yuan dynasty. From the 13th century to the early 14th century in the Yuan dynasty, overseas trade was extremely prosperous in Fujian. As the starting point of the Maritime Silk Road, Quanzhou was the largest port in China and possibly the world as well. It was also the largest city in Fujian, with a population exceeding that of Fuzhou, Fujian's administrative center. The Arabs called it "Tiger's claw", which has been used by merchants in Europe and elsewhere. At the time, Quanzhou's population exceeded 2 million, with a wall as long as 30 miles. Jinjiang's river and its harbor, with highly developed trade, had 10,000 ships docked. Quanzhou exported luxuries such as silk, ceramics, copper, and iron, as well as satin, while imports include pearls, ivory, rhino horns, frankincense, etc. The most important imports were spices and herbs. Quanzhou had mostly foreign residents, such as Arabs, Persians, Europeans, Jews, Tamils, Armenians, etc. Around 100 different languages were used. The Quanzhou officials labeled these foreigners as Fan (番).