As the dendrochronological data suggests, because the dates inscribed in mirrors, such as the Gamontai Shinju-kyo Mirror (Mirror with figures of deities and sacred animals which was excavated from Makimuku ruins) correspond with the time of Yamatai, it is apparent that the construction of the original buildings had already begun in the time of Yamatai, and they were in their prime from the late Yayoi period to Tumulus period, which matches the dates of Yamatai.
年輪年代学の成果により、画文帯神獣鏡などの記年鏡の年代も一致したことから、邪馬台国の時代にすでに遺跡の築造が始まっていたとみられ、最盛期が弥生時代終末期～古墳時代であり、邪馬台国の時代と合致すること。