Japan 400-1500 By ayoung000 Period: 400 to Nov 30, 1500 400-1500 500 Japan adopts Chinese writing system. 538 Buddhism introduced to Japan Introduction of Buddhism in Japan 538 Buddhist Monks arrived in Japan from Korea 593 Prince Shotuku takes power Nov 30, 622 Prince Shotoku dies Nov 30, 645 Taika reform leads to new rules and laws Nov 30, 1159 Minamoto forces stormed into the capital Nov 30, 1185 Fedudalism begins in Japan Nov 30, 1185 Minnamoto warriors defeated Taira forces in a final clash at sea. Nov 30, 1274 The first Mongol invasion fails. Nov 30, 1274 The Mongol Khan sent hundreds of ships across the sea.