The art of making reliefs appeared in Hue thousands of years ago. It flourished brilliantly in the 17th century along with copper casting and Hue porcelain mosaics on the complex of relics in Hue ancient capital. In the 21st century, painters and skillful artisans in Hue contributed to the development of the art.

Nearly three hours after casting, the net was hauled onto the boat by skilled fishermen. To the rhythm of the waves, the boat pulled ashore, in the basket containing manna from the sea, the eel catfish attracted the attention from buyers.

After waiting for nearly 2 hours on the beach of Giang Hai Commune (Phu Loc), Mr. Thuan started to collect the net. Ironically, the net only had a few small fish when he pulled it up. Meanwhile, just a few hundred meters away, Mr. Hai's net was full of fish waiting to be picked.

The Nine Dynastic Urns were recognized as a National Treasure in 2012. On May 8, in the capital city of Mongolia, the “Bronze castings on the Nine Dynastic Urns at the Imperial Citadel of Hue” officially became a documentary heritage of UNESCO's Memory of the World Programme for the Asia - Pacific Region.

At 13:09 on May 8th (local time), in the capital city of Ulaanbaatar, Mongolia, Vietnam's dossier "Bronze castings on the Nine Dynastic Urns at the Imperial Citadel of Hue" was approved and officially became a documentary heritage of UNESCO's Memory of the World Programme for the Asia-Pacific Region.