samurai Taira clan Minamoto clan Genpei War Minamoto no Yoritomo military government Kamakura Hōjō clan Zen Kamakura period Kamakura shogunate Mongol invasions overthrown Emperor Go-Daigo Ashikaga Takauji Muromachi period Ashikaga shogunate civil war began in 1467 Sengoku period Wa shōgun Buddhism daimyō
Japan's feudal era was characterized by the emergence and dominance of a ruling class of warriors, the samurai. In 1185, following the defeat of the Taira clan by the Minamoto clan in the Genpei War, samurai Minamoto no Yoritomo established a military government at Kamakura. After Yoritomo's death, the Hōjō clan came to power as regents for the shōgun. The Zen school of Buddhism was introduced from China in the Kamakura period (1185–1333) and became popular among the samurai class. The Kamakura shogunate repelled Mongol invasions in 1274 and 1281 but was eventually overthrown by Emperor Go-Daigo. Go-Daigo was defeated by Ashikaga Takauji in 1336, beginning the Muromachi period (1336–1573). The succeeding Ashikaga shogunate failed to control the feudal warlords (daimyō) and a civil war began in 1467, opening the century-long Sengoku period ("Warring States").
