Samurai (侍) weree the hereditary military nobility and officer caste of medieval and early-modern Japan from the late 12th century to their abolition in 1876. They were the well-paid retainers of the daimyo (the great feudal landholders). They had high prestige and special privileges such as wearing two swords. They cultivated the bushido codes of martial virtues, indifference to pain, and unflinching loyalty, engaging in many local battles.
The Kamakura period (1185–1333) saw the rise of the samurai under shogun rule as they were "entrusted with the security of the estates" and were symbols of the ideal warrior and citizen. Originally, the emperor and non-warrior nobility employed these warrior nobles. In time they amassed enough manpower, resources and political backing, in the form of alliances with one another, to establish the first samurai-dominated government.
In the 1870s, samurai comprised five percent of the population, or 400,000 families with about 1.9 million members. They came under direct national jurisdiction in 1869, and of all the classes during the Meiji revolution they were the most affected. Although many lesser samurai had been active in the Meiji restoration, the older ones represented an obsolete feudal institution that had a practical monopoly of military force, and to a large extent of education as well.
As aristocrats for centuries, samurai developed their own cultures that influenced Japanese culture as a whole. The culture associated with the samurai such as the tea ceremony, monochrome ink painting, rock gardens and poetry was adopted by warrior patrons throughout the centuries 1200–1600. These practices were adapted from the Chinese arts. Zen monks introduced them to Japan and they were allowed to flourish due to the interest of powerful warrior elites.
Maintaining the household was the main duty of women of the samurai class. This was especially crucial during early feudal Japan, when warrior husbands were often traveling abroad or engaged in clan battles. The wife, or okugatasama (meaning: one who remains in the home), was left to manage all household affairs, care for the children, and perhaps even defend the home forcibly. For this reason, many women of the samurai class were trained in wielding a polearm called a naginata or a special knife called the kaiken in an art called tantojutsu (lit. the skill of the knife), which they could use to protect their household, family, and honor if the need arose.