"Indonesia Raya" ("Great Indonesia") is the national anthem of Indonesia. It has been the national anthem since the proclamation of Indonesian independence on 17 August 1945. The song was introduced by its composer, Wage Rudolf Supratman, on 28 October 1928 during the Second Indonesian Youth Congress in Batavia. The song marked the birth of the all-archipelago nationalist movement in Indonesia that supported the idea of one single "Indonesia" as successor to the Dutch East Indies, rather than split into several colonies. The first newspaper to openly publish the musical notation and lyrics of "Indonesia Raya" — an act of defiance towards the Dutch authorities — was the Chinese Indonesian weekly "Sin Po".