 Under the administration of the Republic of China from 1912 to 1949, these rules were abolished and many migrated outside the Republic of China, mostly through the coastal regions via the ports of Fujian, Guangdong, Hainan and Shanghai.These migrations are considered to be among the largest in China's history.Many nationals of the Republic of China fled and settled down in South East Asia mainly between the years 1911–1949, after the Nationalist government led by Kuomintang lost to the Communist Party of China in the Chinese Civil War in 1949.