From 939 to 1945, Vietnam history experienced autonomous and wealthy feudal Vietnamese dynasties from Dinh Dynasty to Nguyen Dynasty. Yet, in late dynastic period, internal disorders along with French intrigue resulted in the French invasion in Vietnam.
Vietnam has a history of over 4,000 years founding and defending the country, is one of the cradles of the human species. Therefore, the materials on the history of Vietnam are a giant treasure anyone who want to find out this S-shaped country.
Recently, royal documents of Nguyen Dynasty have been recognized as a documentary world heritage by UNESCO in the program of Memory of the World in Asia-Pacific region. These royal texts are considered a huge and valuable heritage of Vietnam history.