What do you do on the first day of the first month?

On the first day of the first month, we will pay a New Year call, wear new clothes and set off firecrackers.

On New Year's Day, the first thing to do is to pay a New Year call and say auspicious words. Generally speaking, New Year greetings begin at home, and the younger generation greets their elders, and then visits neighbors, relatives and friends to say auspicious words. New Year's Day pays attention to wearing new clothes and shoes, which represents the renewal of Vientiane and the new year has a new atmosphere. Some places also pay attention to wearing red underwear, which means "lucky strike".

Traditionally, on New Year's Day, firecrackers are set off first, commonly known as "opening firecrackers". After the firecrackers are set off, they will leave red fragments, which means "full house". However, with the control of fireworks and firecrackers in recent years, many places are no longer allowed to set off firecrackers. As a result, electronic firecrackers began to become popular. It is said that the sound and light flashing is used to simulate the sound and light when setting off firecrackers, which is also very popular in some places.

Two kinds of first month

The first month refers to the first month of the solar calendar, and the first month of the summer calendar is in Meng Chun, which is equivalent to the first month of the official calendar. The earliest first month was "December Construction". Therefore, the earliest January is the first month of the solar calendar, and the establishment of Yin in history began in the beginning of spring.

After the first month of the lunar calendar, the month related to the lunar calendar is later called the first month of the lunar calendar. The first month of the lunar calendar is silver moon, including beginning of spring and rain in the 24 solar terms. The first month of the lunar calendar is in the lunar month, and the main time of the stage from beginning of spring is 15 or 16. If you come late, you should add a lunar month as a leap month in the last year of the lunar calendar, otherwise it will not match.

Mathematics books use the first month of the solar calendar, and the so-called "building Yin in the first month" in ancient and modern mathematics documents does not refer to the lunar calendar, but refers to the dry calendar that began on the first day of the beginning of spring. Mathematically, the so-called "being robbed in the sea in the first month" refers to silver moon in the solar calendar. If you don't understand the first two months, you won't understand the mathematician's book.