UNESCO's representative to Vietnam Miki Nozawa presents Vietnam's Deputy Minister of Culture, Sport, and Tourism Hoang Dao Cuong with a certificate recognising Mable Mountains' "ma nhai" as MOWCAP's heritage documentary. (Photo: VOV)

The heritage consists of 78  steles with writings in Chinese script and Nom characters, a logographic writing system formerly used to write the Vietnamese language, carved on Marble Mountains’ caves, with unique forms and content from the Nguyen Dynasty’s kings and mandarins, monks, and scholars from the first half of the 17th century to the 20th century.

The writing reveals economic, cultural, and social exchanges of East Asian countries from the 17th century and Vietnam’s ocean vision and open and flexible diplomacy inherited from that time.