The Taiping Rebellion, a massive civil war in 19th-century China, shook the Qing Dynasty to its core. Sparked by a mix of religious fervor, social unrest, and anti-Manchu sentiment, the conflict lasted from 1851 to 1864 and claimed millions of lives. Led by Hong Xiuquan, who believed he was Jesus's brother, the rebels sought to create a "Heavenly Kingdom" in China. The war exposed the Qing government's weaknesses, accelerated Western influence, and left a lasting impact on Chinese society and politics.