Medieval Japan By Chloe Silk 500 Japan has contact with China Period: 500 to Jan 1, 1700 Duration Jan 1, 600 Buddhism, Confucianism and Chinese writing are adopted Jan 1, 710 The imperial court is established at Nara Jan 1, 1192 Yoritomo becomes shogun Japan is ruled by a military style government; the mongols invade Jan 1, 1333 Japan is briefly under imperial rule Jan 1, 1336 First contact with Europeans Jan 1, 1543 Portuguese traders arrive in Japan Jan 1, 1576 The shogunless period begins Jan 1, 1603 Japan closes its door to the west Military rule Mar 2, 2022 Heian period begins A time of cultural and artistic development.