A military dictatorship which ruled Japan from 1185 (formally recognized in 1192) to 1333. The Kamakura Shogunate began when Minamoto no Yoritomo seized power from the imperial court in 1158 and made himself de factor ruler of the country. This militant goverment gave rise to a powerful warrior class, which had previously been considered subordinate and inferior.
After Yoritomo's death, Houjou Tokimasa, head of the Houjou Clan, claimed the title of regent over Yoritomo's son and heir Minamoto no Yoriie. He eventually made the title hereditary, and the Houjou Clan became the real power behind the shogunate. in 1333, the Kamakura Shogunate came to an end when its most powerful general, Ashikaga Takauji, sided with the emperor and destroyed the Houjou Clan. Ashikaga Takauji then established the Ashikaga Shogunate.