The was a time of social upheaval, political intrigue, and nearly constant military conflict in
Japan that lasted roughly from the middle of the 15th century to the beginning of the 17th century.Although the
Ashikaga shogunate had retained the structure of the
Kamakura bakufu and instituted a warrior government based on the same social economic rights and obligations established by the
Hōjō with the Jōei Code in 1232, it failed to win the loyalty of many
daimyo, especially those whose domains were far from
Kyoto. As trade with
China grew, the economy developed, and the use of money became widespread as markets and commercial cities appeared. This, combined with developments in agriculture and small-scale trading, led to the desire for greater local autonomy throughout all levels of the social hierarchy. As early as the beginning of the 15th century, suffering and misery caused by natural disasters such as
earthquakes and famines often served to trigger armed uprisings by farmers weary of debt and taxes.
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