foreigners exceptions ''sakoku'' policy ref name hcaotw ref literacy among japanese people rose two centuries isolation ref name hcaotw parts country particularly smaller regions ' 'daimy s'' samurai less identical since ' 'daimy s'' might trained samurai samurai might act local lords otherwise largely inflexible nature social stratification system unleashed disruptive forces time taxes peasantry set fixed amounts account inflation changes monetary value result tax revenues collected samurai
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