Japanese Castles AD 250-540 Renowned expert Stephen Turnbull examines the castles built in Japan, from the first primitive fortifications in the Yayoi Period (300 BC-AD 250) through to the first proper castles which began to be developed with the rise to power of the Yamato Court, the first emperors of Japan in around AD 250. Examining the close ties that early Japanese dynasties had to both China and Korea, Turnbull assesse... Full description