In 1939, when the name of the country was changed from Siam to Thailand, a competition was launched to create new lyrics, with those by Luang Saranupraphan winning.
En 1939 o nome do país mudou de Siam a Tailandia, polo que se realizou un concurso para a nova letra do himno, do que saíu este de Luan Saranupraphan.