In 1853, the Taiping rebels captured Nanjing and for a while it seemed that Beijing would fall next; but the Taiping northern expedition was defeated and the situation stabilized. The Xianfeng Emperor dispatched several prominent mandarins, such as Zeng Guofan and the Mongol general Sengge Rinchen, to crush the rebellions, but they only obtained limited success. The biggest revolt of the Miao people against Chinese rule in history started in 1854, and ravaged the region until finally put down in 1873. In 1856, an attempt to regain Nanjing was defeated and the Panthay Rebellion broke out in Yunnan.