The constituted a group of people who lived in northeastern
Honshu in the
Tohoku region which was referred to as in contemporary sources. The origin of the Emishi is unknown, but they are believed to have descended from the
Jomon people. The first mention of them in literature dates to
AD 400, in which they are mentioned as "the hairy people" from the Chinese records. Some Emishi tribes resisted the rule of the
Japanese Emperors during the late
Nara and early
Heian periods (7th–10th centuries AD). Scholars believe that they were natives of northern
Honshu and were descendants of those who developed the
Jomon culture in that region. They are thought to have been related to the Ainu.