(Vietnamese) is the official language, which is when the academic year 2463, Vietnam was a referendum to use the Roman script (quoc ngu) instead of Chinese characters (chu nom) to write Vietnamese.
(Vietnamese) is the official language in academic circles, when Viet Nam 2463 (1920). the referendum will use a Roman alphabet (quoc ngu) instead of Chinese characters (Chu Nom) to write the language in Viet Nam.
(Vietnamese) is a religious conflict, when year B.E. 2463 industry Forum Vietnam in the referendum that will use Roman alphabet (quoc ngu), instead of Chinese characters (Chu Nom) to write Vietnamese Language