How many years have calendars been the same?

The perpetual calendar will not be repeated.

The perpetual calendar is the oldest solar calendar in ancient legends of China. A perpetual calendar is an annual calendar that records the dates of specific solar and lunar calendars within a certain time range (such as 100 years or more), which is convenient for people in need to query and use. Ten thousand years is just a symbol, indicating a long time span. ?

The perpetual calendars used now include calendars of several years or calendars suitable for several years. Modern perpetual calendars can display various calendars such as solar calendar, lunar calendar, and dry calendar at the same time, and can also contain various functional information such as good or bad luck, holidays, reminders, etc., which is very convenient for people to query and use.

Composition of perpetual calendar:

In the past, the perpetual calendar recorded the dates of the solar calendar and the lunar calendar within a certain time range;

The perpetual calendars in use now include calendars suitable for several years, solar calendars, lunar calendars, dry calendars and other calendars, as well as various functional information related to the yellow calendar, such as good or bad luck, holiday reminders and so on.

It should be noted that 10,000 years is only a symbolic meaning, which is used to indicate a large time span. ?

Refer to the above? Baidu encyclopedia-perpetual calendar