The national anthem of the Republic of China, also unofficially known as Sān Mín Zhǔyì ('The Tridemism'), was originally created by a Sūn Yìxiān speech in 1924 and was set to music by Chéng Màoyún a few years later when the Guómíndǎng adopted new a new flag and emblem. The anthem was later adopted for the Republic of China in 1937, then officially in 1943. A bit later, when the Japanese surrendered, this song became official in the island of Taiwan. When the communists took control of the mainland in 1949, repelling the nationalists to Taiwan, this anthem became banned in the mainland but continues to be in use in Taiwan to this day alongside the national banner anthem.