Emperor Wu of Han (30 July 157 BC – 29 March 87 BC), born Liu Che, courtesy name Tong, was the seventh emperor of the Han dynasty of China, ruling from 141–87 BC.[3] His reign lasted 54 years — a record not broken until the reign of the Kangxi Emperor more than 1,800 years later. His reign resulted in a vast territorial expansion and the development of a strong and centralized state resulting from his governmental reorganization, including his promotion of Confucian doctrines. In the field of historical social and cultural studies, Emperor Wu is known for his religious innovations and patronage of the poetic and musical arts, including development of the Imperial Music Bureau into a prestigious entity. It was also during his reign that cultural contact with western Eurasia was greatly increased, directly and indirectly.