The An Lushan Rebellion was a major uprising against the Tang Dynasty in China that began in 755 AD. Led by the general An Lushan, the rebellion was fueled by discontent among various groups, including soldiers and local populations. It resulted in a devastating civil war that lasted for nearly eight years, leading to significant loss of life and weakening the Tang government. The rebellion began when An Lushan declared himself emperor, challenging the authority of the Tang rulers. The conflict caused widespread destruction and led to the fragmentation of the empire. Ultimately, the rebellion was suppressed, but it marked a turning point in Chinese history, contributing to the decline of the Tang Dynasty.