Sun Yat-sen was born in1866165438+10/2 in Xiangshan County, Guangdong Province. He practiced medicine in his early years, and established Zhong Xing Association in 1894, determined to engage in revolutionary movement. 1905 put forward the three principles of nationality, civil rights and people's livelihood. 19 1 1 year, Wuchang Uprising overthrew the monarchy, was elected President of the Republic of China, and promulgated an interim constitution. The following year, he was forced to resign, and later reorganized the League into the Kuomintang to launch the second revolution and the war to protect the law. 1924, established the policy of uniting Russia, uniting the Communist Party and helping the peasants and workers, published the New Three People's Principles, founded the Whampoa Military Academy, and arrived in Beijing to discuss the country at the end of the year. 1925 March 12 died in Beijing. Sun Yat-sen was a great pioneer of China's modern democratic revolution, and he devoted his life to China.