Postal code (Zipcode) of Xã Định Long is: 41007

Dinh Long Wards, Yen Dinh District, Thanh Hoa province, Viet Nam

The North and North Central regions have a humid subtropical climate with 4 seasons: Spring, Summer, Autumn, and Winter. The Central and South Central regions have a tropical monsoon climate, the extreme South Central and Southern regions have tropical savanna characteristics. At the same time, it is directly influenced by the trade monsoon climate, which often blows in low latitudes. The South often has a tropical savanna climate, hot and humid with two seasons: dry season and rainy season (from April-May to October-November). Every year, the cold and humid winter typical of the North contrasts with the warm atmosphere of Tet and spring in the South.

Vietnam's terrain has about 40% mountains and forests, 40% hills and coverage of about 75% of the country's area. There are mountain ranges and plateaus such as Hoang Lien Son range, Son La plateau in the north, Bach Ma range and plateaus following the Truong Son range in the south. Network of rivers and lakes in the delta or mountainous areas of the North and Central Highlands. The delta accounts for about 1/4 of the area, including deltas such as the Red River Delta, Mekong River Delta and the Central Coastal Plains, which are densely populated areas. Cultivated land accounts for 17% of Vietnam's total land area.

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.

Vietnamese culture is one of the oldest cultures in the Pacific region. Although located next to two major cultures, Chinese and Indian culture, Vietnam still preserves many of its own cultural features, expressed in many aspects such as traditional customs that still exist today. Nowadays, Vietnamese people's life and folk literature are rich and unique. It can be said that Vietnamese culture is a special blend of many ancient cultures along with the indigenous culture of the Vietnamese people. In addition to the greatest influence of China, there is also the influence of Indian and Cham culture. , and later the great influence of Western culture (France, Russia, America).