The period is marked by a strengthening of Yamato royal authority and control, the frequent construction of grand burial mounds (round burial mounds, and those square at one end and rounded at the other), and the settlement of the basis of the ancient Japanese state.
ヤマト王権による支配が強まり、壮大な古墳（前方後円墳・円墳）が盛んに作られ、古代国家の基礎が整えられた時期にあたる。