The ancient Vietnamese people took the agricultural economy as a priority, so the calendar for people's life has a very special meaning. View the calendar to keep track of the time, weather and farming. View the calendar to know the weather changes to respond and prevent natural disasters.
Every year, after the Kham Thien Giam completed the calendar, the Nguyen court held a Ban Soc ceremony under the management of two officials at Bo Le (Ministry of Rites) and Kham Thien Giam. The calendar was offered to the Imperial Palace for royal use, and at the same time was distributed to officials in Hue Citadel, and localities and redistributed among the people. As a rule, from February of the lunar calendar, Kham Thien Giam has started to calculate to make a calendar for the coming year.
In May, the draft will be completed. Kham Thien Giam will directly print and distribute calendars in the Capital and the southern provinces to Khanh Hoa, north to Thanh Hoa. The provinces of Ninh Binh and Binh Thuan will be in charge of printing and issuing calendars. There is also a period when local officials only receive sample calendars and organize printing for people in provinces and cities in the following time. The calendar template was provided by Kham Thien Giam, after printing is completed, Kham Thien Giam will review it to be allocated and distributed. After the provincial officials received the calendars, these officials were responsible for organizing the meetings of the district officials to receive the calendars to distribute to the people.
After 180 years, also in the year of the Ox, the Ban Soc Ceremony on that day was reenacted in the form of theatricalization with the ancient rituals and solemnity. The reenactment of the Ban Soc Ceremony is a reenactment of the spirit of the ancient people and an opportunity for visitors and Hue people to experience the ancient heritage of Hue on the first day of the new year.