Vietnam, whose national name is the Socialist Republic of Vietnam, is a socialist country located at the eastern tip of the Indochina peninsula in Southeast Asia, bordering Laos, Cambodia, China, and the sea. East and Gulf of Thailand. The territory of Vietnam has been inhabited since the Paleolithic era, starting with the states of Van Lang and Au Lac. Au Lac was annexed by the Trieu Dynasty in the North in the early 2nd century BC, followed by a period of Northern domination lasting more than a millennium. The independent monarchy was re-established after Ngo Quyen's victory over the Southern Han dynasty. This event paved the way for independent dynasties to succeed and then repeatedly win against wars of invasion from the North as well as gradually expanding to the south. The final period of Northern domination ended after the Lam Son insurgent army's victory over the Ming Dynasty.

Vietnam has an area of 331,212 km², a land border of 4,639 km, a coastline of 3,260 km, and shares a maritime border with Thailand through the Gulf of Thailand and with China, the Philippines, Indonesia, Brunei, Malaysia through the East Sea. Vietnam claims sovereignty over two disputed geographical entities in the East Sea, the Hoang Sa archipelagos (which has lost control in reality) and Truong Sa

According to the ups and downs of the nation's history, Vietnamese customs and practices are constantly being innovated according to social trends. One of the oldest and most influential customs in history is the custom of chewing betel. This is a custom that dates back to the Hung King period and originates from the legend of Trau Areca and this custom has become a typical image of the brotherhood and love between husband and wife of Vietnamese people. Not only the custom of chewing betel, Vietnam also has another custom that was born in ancient times, which is the custom of welcoming the new year, also known as Tet - traditional Tet.

Hang Market (Hai Phong) was formerly the market of an ancient village called Du Hang (17th-18th centuries). The Du Hang village area was formerly agricultural land and a traffic hub, so Hang market became a place to meet, exchange, and buy and sell plants, animals, and farming utensils. The urbanization process spread to the suburbs, so today Hang Market is located entirely in the inner city, in Du Hang Kenh ward, Le Chan district, Hai Phong city. Even though many years have passed, the customs of exchanging agricultural goods of c