shogun japam By kenziee 520 BCE Introduction of Zen Buddhism Period: 794 to 1184 Rise of the Samurai Class Aug 21, 1192 Minamoto no Yoritomo becomes the first shogun Nov 19, 1274 The Mongol Invasions of Japan Aug 11, 1335 Ashikaga shogunate begins 1467 Onin War and the start of the Sengoku Period