1) Early Japanese society merged indigenous kinship systems with adopted Chinese bureaucratic models, blending family and formal hierarchies. 2) The rise of feudalism established a stratified society led by samurai. Cultural exchange continued as Buddhism influenced diverse expressions. 3) Modernization dismantled feudalism but brief democracy gave way to militaristic authoritarianism until defeat in WWII. The postwar period saw a rooted democracy and mixed economy balancing group orientation and individualism.