Early Yayoi Wa Settlements

Timeline

1. c. -500–-100Northern Kyushu · FukuokaLarge Yayoi settlements with moats appeared in northern Kyushu, combining rice paddies, raised-floor granaries, and bronze tools, showing social organization driven by agricultural surplus and defensive needs, providing the archaeological basis for the groups referred to by the name 'Wa'.
2. c. -100–250Kinai · KinaiSettlements in the Kinai region grew in scale, with raised-floor storehouses, ritual pottery, and interregional trade networks appearing; multiple 'state'-like political units coexisted, laying the groundwork for the Wa tributary missions recorded in Han dynasty histories and the later struggles of the Yamatai state.