National Day (), officially the National Day of the People's Republic of China (), is a public holiday in China celebrated annually on 1 October as the national day of the People's Republic of China, commemorating the formal proclamation of the establishment of the People's Republic of China on 1 October 1949. The Chinese Communist Party victory in the Chinese Civil War resulted in the Kuomintang retreat to Taiwan and the Chinese Communist Revolution whereby the People's Republic of China replaced the Republic of China.