The Mongol empire under Kublai Khan had previously tried to invade Japan in 1274 in the same region ... The first and second shipwrecks from the 1281 attack were identified in 2011 and 2015 ...

KYOTO--An iron helmet believed worn by a Mongol warrior during a 13th-century invasion of Japan has turned up at a shrine here, which prayed for the nation’s victory. The cone-shaped headgear ...