Photos and History of Korea's Imperial Family The Joseon Dynasty ruled Korea for more than 500 years By Kallie Szczepanski Thought Co., Updated on August 05, 2019 The First Sino-Japanese War of 1894-95 was fought in part over control of Korea. The Joseon Dynasty of Korea was a long-established tributary to the Qing Dynasty of China, meaning it was to some extent under China's authority. By the e..