What do you mean by accepting, making alliances, making cars, offering sacrifices, opening markets, issuing coupons and entering houses in the calendar?

1, Nacai: marriage, ceremony of concluding marriage, and payment of bride price.

2. Engagement: a kind of engagement ceremony, which means getting married and giving engagement gifts.

3. Automobile manufacturer: Buy a new car.

4. Sacrifice: refers to the ancestral temple sacrifice, that is, offering sacrifices to ancestors or temple fairs, offering sacrifices to gods, etc.

5. Open the market: the significance of opening the business. Shop number opened. Including starting a business or starting a job at the beginning of the year.

6. Making securities: concluding various contracts to buy and sell each other.

7. Entering the house: that is, moving into a new house, the so-called "new house inauguration ceremony".

Extended data:

Lunar calendar and solar calendar

Gregorian calendar, this is a law based on the sun. The ancients thought that the sun revolved around the earth, and one revolution was a year-today we know that it is the cycle of the earth revolving around the sun, but the ancients knew the opposite. During the Warring States period, there was a solar calendar, which lasted for 10 months a year, 36 days a month in the name of heavenly stems and 360 days in the name of earthly branches. Plus five to six days of "wasted time", a year is 365 days or 366 days.

The lunar calendar is based on the changes of the moon's profit and loss. The period of a lunar month is twenty-nine or thirty days, and the length of a year is only an integer multiple of the month, which has nothing to do with the tropic year. The month has nothing to do with the four seasons. Greek calendar and hijri calendar belong to this kind of calendar. It is impossible to have a "double spring" or a "blind year" in a year.

Baidu encyclopedia-perpetual calendar