Hōryaku calendar facts for kids
The Hōreki Kōjutsu Genreki system was the work of Abe Yasukuni, Shibukawa Kōkyō, and Nishiyama Seikyū.
Errors in the calendar were corrected in 1798, and in 1844 In 1872, the Western calendar was adopted.
- National Diet Library, "The Japanese Calendar"
Hōryaku calendar Facts for Kids. Kiddle Encyclopedia.