EntityQ1143910· pop 12· linked from 270 articlesKōjiSign in to saveJapanese era from October 1555 to February 1558ConnectionsInternational Standard Book NumberEntityMeiji restorationEntityAtomic bombings of Hiroshima and NagasakiConceptEmpire of JapanEntityhistory of JapanEntity2011 Tōhoku earthquake and tsunamiEntityRusso-Japanese WarEntitySecond Sino-Japanese WarEntityAttack on Pearl HarborConceptBoxer RebellionEntityFirst Sino-Japanese WarEntityPacific WarEntityTokugawa shogunateEntityEdo periodEntityMeiji eraEntityNational Diet LibraryEntitydaimyoEntityKojikiEntityHeian periodEntityJōmon periodEntityCategories1550s in Japan16th-century neologismsJapanese eras