The National Day of the Republic of China, also referred to as Double Ten Day or Double Tenth Day, is a public holiday that is now held annually in the Taiwan Area of the Republic of China (ROC). It was also officially celebrated in mainland China until 1949 but continues to be celebrated by the People's Republic of China (PRC) as the Anniversary of the Xinhai Revolution. It commemorates the start of the Wuchang Uprising on 10 October 1911 which ultimately led to the collapse of the imperial Qing dynasty and establishment of the Republic of China on 1 January 1912.