Odai Yamamoto and earliest Jōmon-period contexts
大平山元遺跡 / Odai Yamamoto site
Early pottery fragments, stone tools, hearth-related evidence, and changing postglacial environments illuminate mobile lifeways near the Pleistocene-Holocene transition.
Evidence, landscapes, community scale, political organization, and connections
Peninsular, island, river, coastal, and maritime connections
Postglacial vegetation, rivers, coast access, stone sources, seasonal resources, and mobility shaped occupation in northern Honshu.
Political organization and community scale
Small mobile groups organized food collection, toolmaking, fire use, and movement; the evidence does not reveal a centralized polity or one Jōmon social system.
Later transformation, living heritage, and modern reception
Local and national institutions conserve the site. Its early date does not make it the sole origin of later Japanese, Ainu, Jōmon, or other identities and cannot establish ancestry.
Pottery does not independently demonstrate farming, ethnicity, or permanent settlement.
Published dates are calibrated ranges and remain evidence-specific.
The assemblage cannot stand for every Jōmon-period community.
A concise, sourced timeline
These milestones are orientation points, not a complete history.
Households, subsistence, labor, language, belief, craft, exchange, and mobility
Languages named in this profile
- No deciphered written-language evidence
- Pottery and stone tools cannot identify spoken language
Language family: Unknown from the site evidence
Pottery appears in a mobile lifeway rather than a simple farming package.
Radiocarbon ranges require calibration and contextual interpretation.
A small excavated assemblage cannot represent all northern communities.
Elite tombs, palaces, inscriptions, court chronicles, imported objects, and state heritage narratives are often more visible than households, women, children, fishers, farmers, craftspeople, migrants, captives, enslaved or coerced people, and rural communities. Evidence gaps must not be filled with civilizational hierarchy, ethnic purity, empty-land, foreign-founder, or simple population-replacement narratives.
Ask about this reviewed profile
The guide can explain and connect facts already present on this page. It cannot search the open web, establish identity or citizenship, or evaluate ancestry and genetic information.
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Sources used for this page
Prefer living Ainu and Nanai institutions, Korean and Japanese national and regional heritage authorities, museums, UNESCO records, and accountable archaeological projects. Register inscriptions and later chronicles with date, genre, language, audience, and viewpoint. Do not register Wikipedia or add artifact, sacred-site, tomb-interior, burial, or human-remains imagery without per-file licensing, attribution, access-policy, community, and ethical review.
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C1
Jomon Prehistoric Sites in Northern Japan
UNESCO World Heritage Centre · International archaeological heritage record · 2021; current record
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C2
Petroglyphs along the Bangucheon Stream
UNESCO World Heritage Centre · International archaeological heritage record · 2025; current record
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C3
Petroglyphs of Sikachi-Alyan
UNESCO World Heritage Centre · State-submitted archaeological heritage record · 2003; current tentative-list record
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C4
Gochang, Hwasun and Ganghwa Dolmen Sites
UNESCO World Heritage Centre · International archaeological heritage record · 2000; current record
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C5
Complex of Koguryo Tombs
UNESCO World Heritage Centre · International archaeological and conservation record · 2004; current record
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C6
Mozu-Furuichi Kofun Group
UNESCO World Heritage Centre · International archaeological heritage record · 2019; current record
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C7
Japan World Heritage properties
UNESCO World Heritage Centre · International heritage directory including Asuka-Fujiwara and Nara · Current state-party record
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C8
National Ainu Museum
Upopoy National Ainu Museum and Park · Living Ainu cultural and museum institution · Current institutional resource
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C9
National Museum of Korea
National Museum of Korea · National museum research and collections resource · Current institutional resource
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C10
National Museum of Japanese History
National Institutes for the Humanities · National historical and archaeological research museum · Current institutional resource
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C11
Sacred Island of Okinoshima and Associated Sites in the Munakata Region
UNESCO World Heritage Centre · International archaeological and sacred-landscape record · 2017; current record
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C12
Baekje Historic Areas
UNESCO World Heritage Centre · International archaeological heritage record · 2015; current record
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S1
Jomon Prehistoric Sites in Northern Japan
UNESCO World Heritage Centre · International serial archaeological heritage record · 2021; current record
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S2
Odai Yamamoto Site
Jomon Prehistoric Sites World Heritage Promotion Office · Official archaeological-site interpretation · Current official site resource
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S3
Jomon Prehistoric Sites in Northern Japan
Agency for Cultural Affairs, Government of Japan · National archaeological synthesis · Current official thematic resource
Editorial review: August 5, 2026