What does it mean to open the market on an auspicious day in the old calendar?

Opening a market is business, opening a position is lending, and trading is business.

In ancient times, business was written, such as buying a house with a deed. There is a title deed for buying land. Writing down your rights through a contract is called making a voucher.

The Old Yellow Calendar is a kind of almanac that can display Gregorian calendar, lunar calendar, dry calendar and other calendars at the same time, and has a large number of rules and contents related to seeking good fortune and avoiding evil. It can be used to choose an auspicious day for getting married, breaking ground, traveling and opening business.

This is a calendar based on the China lunar calendar, and there are many words indicating the good luck or bad luck of this day. According to legend, it was created by Xuanyuan Huangdi, so it is called Huangli, and it is also commonly known as "Tongshu" among the people. However, because the word "book" and "lose" in Tongshu are homophonic, it is also called "Tong Sheng" because of taboo. The main contents of the Gregorian calendar are the schedule of the twenty-four solar terms, the good and bad luck of each day, the luck of the zodiac and so on.