Postal code (Zipcode) of Huyện Đông Sơn is: 40800

Vietnam is a country on an S-shaped strip of land, located in the center of Southeast Asia, in the east of the Indochina peninsula, to the north by China, to the west by Laos and Cambodia, and to the southeast overlooking the sea. East and Pacific. Vietnam's coastline is 3,260 km long, and its land border is 4,510 km long. On land, from the northernmost point to the southernmost point (as the crow flies) is 1,650km long, from the easternmost point to the westernmost point the widest place is 600km (Northern region), 400km (Southern region), the narrowest place is 50km (Quang Binh).

Festivals are one of the special features in Vietnamese culture. The diversity of ethnic religions makes Vietnam one of the countries with many festivals. Festivals are held to commemorate cultural events. Community spirit is the essence of every festival. There are two parts to festivals: ceremony and festival. The ceremony is to express respect for divinity and people's dreams of health, wealth, luck and happiness for themselves and their loved ones. Festivals are unique features of culture, community, religion, etc. The two biggest traditional festivals are Lunar New Year and Hung King's Death Anniversary. During Lunar New Year, each region has other festivals to celebrate such as Lim Festival in Bac Ninh province, Giong Festival in Soc Son, Perfume Pagoda Festival in Hanoi. Hung King's death anniversary is held every year from the 8th to the 11th of the third lunar month. It is organized so that everyone remembers their roots. With many landscapes recognized by UNESCO as world natural heritage and a wealth of unique regional cultural spaces, Vietnam is a legendary land and also a storehouse of attractive material for filmmakers to exploit. long lasting waterfall.

Vietnam's history began from 1 to 2 thousand years BC. Over many centuries with the Ly, Tran, Le, and Nguyen dynasties, from the mid-19th century, Vietnam became a French colony. After the August Revolution, the Democratic Republic of Vietnam was born. The Battle of Dien Bien Phu in 1954 marked the end of the French in the territory, but Vietnam was divided into two countries: the Democratic Republic of Vietnam in the North and the Republic of Vietnam in the South. After the events of April 30, 1975, Vietnam was unified and from July 2, 1976, officially named the Socialist Republic of Vietnam.

During the resistance war against America to save the country, places in Quang Tri such as: Hien Luong - Ben Hai, Vinh Moc, Con Tien, Doc Mieu, Road 9, Khe Sanh, Ta Con, Cua Viet, Co Citadel... were lost. into national history. When mentioning Quang Tri, many people remember the Quang Tri Ancient Citadel with its fierce battle that lasted for 81 days and nights. Therefore, peace is always the burning desire of the people of Quang Tri province as well as of all Vietnamese people. The desire for peace is also the wish of tens of thousands.