Japanese Timeline By Char1311 Oct 15, 1185 Minamoto clan seizes power in the emperor’s name. Minamoto no Yoritomo becomes shogun, and establishes his own capital city in Kamakura. Oct 15, 1232 ‘Goseibai Shikimoku’ legal code establishes guidelines for military government Oct 15, 1274 Mongol army lands on the island of Kyushu but is defeated Oct 15, 1281 The samurai defeat a second Mongol invasion of Kyushu Oct 15, 1333 Emperor Go-Daigo overthrows the Kamakura government (bakufu) military; imperial government is re-established Oct 15, 1336 Start of period of rival northern and southern emperors, supported by Go-Daigo and the Ashikaga clan respectively. It lasted until 1392. Oct 15, 1378 Shogun Ashikaga Yoshimitsu brings the military government back to Kyoto Oct 15, 1467 Start of the Warring States period; Japan is plunged into a century-long civil war between rival samurai warlords. It lasted until 1573 Oct 15, 1543 Firearms arrive in Japan brought by Portuguese traders Oct 15, 1603 Tokugawa Ieyasu becomes shogun, based in Edo (later known as Tokyo). The Tokugawa shogunate rules Japan for the next 260 years Oct 15, 1633 The sakoku period of isolation begins Oct 15, 1854 Convention of Kanagawa opens up trade with America (end of sakoku period) Oct 15, 1867 The last shogun, Tokugawa Yoshinobu, steps down and the imperial regime is restored Mar 2, 2022 The royal court moves from Nara to Kyoto.