The Manchus, led by Nurhachi, became the rulers of China following their victories over Ming in 1644. Their victories was not because of their military might but due to internal disorder and political decay of the country under the Mings. Nurhachi established the Qing (meaning pure) Dynasty in 1644. which lasted more than 200 years till 1911 when it became a Republic as a result of a revolution lead by Dr Sun Zhong Shan. Nurhachi adopted the reign title of Shunzhi. Prior to ascending the imperial throne of China as the first Qing emperor, he minted the Abkai Fulingga Han Jiha coin (Imperial coin of the Heavenly Mandate). An intersting feature of the Qing coin is the use of Chinese script on one face of the coin and the use of Manchu script on the other. Among the Manchu emperors, only 3 proved themselves to be capable rulers and administrators. These rulers were Kangxi, Yongzheng and Qianlong. When Qianlong abdicated in AD 1795 in favour of his 15th son, Jiaqing, the dynasty was beset by political, social and economic problems. This coupled with the rising influence and power of the Western powers caused the downfall of the last imperial regime of China.