What's the episode in Shouguang on April 9th?

Shouguang has: Los Angeles, Ji Sun, Liu Tian, Wen Jia and Shangkou, all of which are comprehensive.

The four nineties mentioned here refer to the fourth, ninth, fourteenth, nineteenth, twenty-fourth and twenty-ninth days of the lunar calendar, and these fixed days are gathered together. This form of market is also called a day rally.

Market introduction:

Market is a market where commodities are bought and sold regularly in rural areas or small cities. In ancient times, it was also called "market" and "market gathering". "Set" means "people and things get together". Buying and selling in the market is called "the last episode" and "the fair", and casually looking at the collection is called "browsing the collection" and "catching the leisure collection". In southern Shaanxi, the fair is called "Fair". Large-scale parties are also called "meetings", such as "material exchange meetings".

The market is held every other day, that is, every few days. For example, the gathering period of towns in Chang 'an County is Wednesday, Saturday and September, that is, the third, sixth, ninth, thirteenth, sixteenth, nineteenth, twenty-third, twenty-sixth and twenty-ninth days of each month are gathering days.

Another example is that the collecting period of herbs in Jiaodai Town, Lantian County is one, four and seven, and that in Wang Jiahe Township, Tongchuan City is four and nine.

Neighboring towns and villages in a county should be separated to avoid committing crimes. For example, A is one, four or seven, B is two, five or eight, and C is three, six or nine. The market is divided into industries.

Every city has a fixed and centralized business area, and the common cities are: grain market. The business objects are raw materials, flour and vegetable oil. Brokers carry scales and are called "people who carry scales". Mass sales are conducted by brokers between sellers and buyers.