The octagonal episode in the Development Zone: every Thursday and every September in the lunar calendar. Venue: Liujia, Bajiaoxia.

Origin of the fair:

In ancient times, when people exchanged materials, because there was no fixed date and place, and there was no unified standard, one party often suffered. Therefore, people all hope to have a fair and reasonable exchange place on a regular basis. In the early years of the Han Dynasty, two famous politicians, Lu Jia and Chen Ping, made it clear through the government that every ten days in every village and town, "Wednesday, Saturday, September" or "January, Thursday, July" or "February, Friday and August" were the dates for the exchange of materials in the market, and the market was set up with notaries to bid for comments. In this way, the original trade market was formed.

Later, people called the last episode a "fair" or a festival. At present, most places choose every Friday or every ten days as the market to exchange materials in rural areas. "Fair" is a veritable business transaction. Generally, the time is short, ranging from one day to half an hour. The timing of trading at the fair is very important, so the word "catch up" is added in front.