Sun Yat-sen was the great forerunner of the Chinese democratic revolution, the founder of the Republic of China and the respected contributor to Chinese modern history.
From 1918 to 1925, Mr. Sun Yat-sen and his wife lived in the Former Residence. It was here that Mr. Sun accomplished his renowned masterpieces such as Doctrines of Sun Wen, Plans of China's Development, etc., made the plan of reforming the Three Principles of the People (Nationalism, Democracy and the People's Livelihood) and put forward the three cardinal policies (alliance with Soviet Russia, cooperation with the Communists and assistance to the workers' and peasants' movements). It was also here that he received the representatives of the Communist Party of China and promoted the first cooperation between the two major parties in Chinese modern history (the Nationalist Party and the Communist Party).