Gihō calendar facts for kids
The calendar was created in China. It was first used in the Rintoku era during the Tang Dynasty..
The Gihō-reki system was brought from Korea to Japan in Yi-feng era (676-678) of the reign of Emperor Gaozong of Tang. This calendar corrected errors in the Yuan-jia li (Genka calendar) which was developed in China. For a short time, both Genka and Gihō calendars were in use.
Gihō calendar Facts for Kids. Kiddle Encyclopedia.