The Chu Nom was a system developed to write Vietnamese. The actual date is not agreed but chu nom was already in existence by the mid-13th century.
For much of Vietnam's history the official written language was Classical Chinese, using, of course, Chinese characters. Chinese became established as the dominant cultural medium during the millennium (111 B.C. - 938 A.D.) when Vietnam was under direct Chinese rule.
Considering that Vietnam has been an independent nation for a thousand years, Quoc ngu has a surprisingly brief history. The system was developed by Portuguese Jesuit missionaries in the 17th century. The earliest extant dictionary using quoc ngu was the Dictionarium Annamiticum Lusitanum et Latinum,...
Modern Vietnamese is written with the Latin alphabet, known as Quoc ngu ( ) in Vietnamese. . Quoc-ngu was devised in the mid 17th century by Portuguese missionaries who modified the Roman alphabet with accents and signs to suit the particular consonants, vowels, and tones of Vietnamese.
Some 3,000 years ago, communities of Mon-Khmer and Tay people merged in the northern Red River and Ma River Deltas. These two groups developed a shared language, known as Viet-Muong, which was composed of two main dialects. Lowlanders spoke what was known as the "City" dialect, while people in midland and...
Among the 54 Vietnamese ethnic groups some have had their own scripts for a long time and some have not preserved their ancient scripts. As a matter of fact, some ethnic groups consisting of some hundreds of individuals living in remote areas have their own languages.