The Qing Dynasty ruled China from 1644 to 1911. In 1644, the Manchus swept into Beijing and established the Qing Dynasty after claiming the Mandate of Heaven. The Qing government expanded the empire to include territories like Tibet, Mongolia, Taiwan, and Manchuria. They also controlled Korea and Vietnam. However, by the 1750s the Qing Dynasty began declining due to issues like corruption and isolationist policies.