Retrocession Day
Retrocession Day, officially called the Taiwan Retrocession Day and the Anniversary of the Battle of Guningtou in Taiwan and the Commemoration Day of Taiwan's Restoration in mainland China, is a public holiday in the Republic of China (Taiwan) and a memorial day in the People's Republic of China, created in 2025, to commemorate the end of Japanese rule of Taiwan and its transfer to the Republic of China on 25 October 1945. == Background == Taiwan, then more commonly known to the Western world as "Formosa", became a colony of the Empire of Japan after the Qing dynasty lost the First Sino-Japanese War in 1894 and ceded the island with the 1895 Treaty of Shimonoseki.