The Muromachi period (室町時代 Muromachi jidai?, also known as the Muromachi era, the Ashikaga era, or the Ashikaga period) is a division of Japanese history running from approximately 1336 to 1573. The period marks the governance of the Muromachi or Ashikaga shogunate (Muromachi bakufu or Ashikaga bakufu), which was officially established in 1338 by the first Muromachi shogun, Ashikaga Takauji, two years after the brief Kenmu Restoration (1333–36) of imperial rule was brought to a close. The period ended in 1573 when the 15th and last shogun of this line, Ashikaga Yoshiaki, was driven out of the capital in Kyoto by Oda Nobunaga.
From a cultural perspective, the period can be divided into the Kitayama and Higashiyama periods (later 15th – early 16th).
The early years from 1336 to 1392 of the Muromachi period are known as the Nanboku-chō or Northern and Southern Court period. This period is marked by the continued resistance of the supporters of Emperor Go-Daigo, the emperor behind the Kenmu Restoration. The years from 1465 to the end of the Muromachi period are also known as the Sengoku period or Warring States period.
Emperor Go-Daigo's brief attempt to restore the imperial power in the Kenmu Restoration alienated the samurai class. Ashikaga Takauji obtained the samurai's strong support, and deposed Emperor Go-Daigo. In 1338 Takauji was proclaimed shogun and established his government in Kyoto. However, Emperor Godaigo escaped from his confinement and revived his political power in Nara. The ensuing period of Ashikaga rule (1336–1573) was called Muromachi from the district of Kyoto in which its headquarters – the Hana-no-gosho (花の御所?, Flower Palace) – were located by third shogun Ashikaga Yoshimitsu in 1378. What distinguished the Ashikaga shogunate from that of Kamakura was that, whereas Kamakura had existed in equilibrium with the imperial court, Ashikaga took over the remnants of the imperial government. Nevertheless, the Ashikaga shogunate was not as strong as that in Kamakura had been, and was greatly preoccupied with civil war. Not until the rule of Ashikaga Yoshimitsu (as shogun, 1368–94, and chancellor, 1394–1408) did a semblance of order emerge.