Tokugawa Shogunate

During the Tokugawa era, samurai increasingly became courtiers, bureaucrats, and administrators rather than warriors. With no warfare since the early 17th century, samurai gradually lost their military function during the Tokugawa era (also called the Edo period).

By the end of the Tokugawa era, samurai were aristocratic bureaucrats for the daimyo, with their daisho, the paired long and short swords of the samurai (cf. katana and wakizashi) becoming more of a symbolic emblem of power rather than a weapon used in daily life.

They still had the legal right to cut down any commoner who did not show proper respect (kiri sute gomen (斬り捨て御免)), but to what extent this right was used is unknown. When the central government forced daimyos to cut the size of their armies, unemployed ronin became a social problem.

Theoretical obligations between a samurai and his lord (usually a daimyo) increased from the Genpei era to the Edo era. They were strongly emphasized by the teachings of Confucius and Mencius (ca 550 B.C.) which were required reading for the educated samurai class. Bushido was formalized by several influential leaders and families before the Edo Period. Bushido was an ideal, and it remained fairly uniform from the 13th century to the 19th century — the ideals of Bushido transcended social class, time and geographic location of the warrior class.

Bushido was formalized by samurai such as Imagawa Ryoshun as early as the 13th century. The conduct of samurai served as role model behavior for the other social classes. With time on their hands, samurai spent more time in pursuit of other interests such as becoming scholars.

Bushido still survives in present-day Japanese society, as do many other aspects of the samurai's way of life.