The difference between perpetual calendar and old yellow calendar

The differences between perpetual calendar and old calendar are: different historical origins and different time spans.

1, different historical origins

The perpetual calendar originated from Zu Ti, the monarch of Shang Dynasty, who observed the changes of the sun and the moon. After years of long-term observation and careful calculation, an accurate solar calendar has been worked out. The monarch named the solar calendar "perpetual calendar" to reward his behavior. The yellow calendar (old yellow calendar) was obtained because ancient people imagined the movements and changes of celestial bodies on the basis of astrology and divination, and it was not until the Tang Dynasty that the yellow calendar was finally determined.

2, the time span is different

"10,000 years" in the perpetual calendar means that the time span is very long, not really 10,000 years, but the time recorded in the perpetual calendar is still longer than that in the yellow calendar, including at least 100 years of calendars such as Gregorian calendar, lunar calendar, dry calendar, hijri calendar and Tibetan calendar.

Generally, the yellow calendar is printed and published on a yearly basis, and it can also display many sets of calendars, such as solar calendar, lunar calendar, and dry calendar. There are a lot of rules and contents related to seeking good fortune and avoiding evil.

The origin of perpetual calendar:

According to folklore, a long time ago, in Shang Dynasty, there was a young man named Wan Nian. He saw that the festival was chaotic and wanted to set things right, so he thought about it whenever he had time. After unremitting efforts, I finally compiled this calendar.

Modern perpetual calendars can simultaneously display various calendars such as solar calendar, lunar calendar and dry calendar, and can also contain various functional information related to the imperial calendar, such as good or bad luck, holidays, reminders, etc., which is very convenient for people to query and use. Ten thousand years is just a symbol, indicating a long time span.