Linked from
The 22 pages that link to Lunisolar calendar, each with the reason it gives.
Lunar monthRelated: It uses lunar months but adds intercalary months to keep seasons aligned.
New moonRelated: Many lunisolar months begin at or near the new moon.
TentokuRelated: Dates in Tentoku-era records were reckoned under a traditional lunisolar calendar.
JōheiRelated: The traditional calendar used for Jōhei did not align exactly with Gregorian years.
Year (calendar)Related: It reconciles twelve-month lunar cycles with seasonal timing.