It was Persia until 1935; in 1949 the government permitted both names
They know when the New Year is upon them as in 
each town and village cannon is sounded at the precise moment until it is heard 
they... [DOC] [TLE] National Anthem Downloads, Lyrics, & Information: NationalAnthems ... [PAR] In 1935 the Government specified that it should be called Iran; however, in 1949 
they allowed both names to be used.