Wu Meiniang was inspired by the Gregorian calendar.

I think encyclopedias were converted into solar calendars by later generations. Take a closer look at this sentence in the encyclopedia:

"About the birth and birthplace of Wu Zetian has always been confusing. It is said that Tang Gaozu Wude is seven years old.

23rd of the month (according to the related software of modern perpetual calendar, the 23rd day of the first month in 624 is February17th in the solar calendar, and there are also February 2 1 day and February 25th, and the information is for reference only) "