🌐 RSoJS SPECIAL REPORT

Published by: Research Society of Japanese Sodai (RSoJS) | Contact: sunda-wind.net

Executive Summary

Global academic discourse regarding the “First Americans” remains bottlenecked by a Eurocentric, Siberian-centric paradigm that overemphasizes the inland Mammoth Hunter lineage (Ancient North Eurasian / ANA) and the Clovis-First model. Furthermore, Western understanding of Japan’s deep past rarely looks beyond the Jomon period (approx. 16,500 years ago).

This report presents a disruptive, multi-wave migration framework proving that the true pioneers of the New World were maritime populations originating from the Japanese Paleolithic—the Sodai (祖代) / Sojin (祖人) era—who utilized the Kelp Highway via a unique Migration along Pacific Ocean Rim (MPOR).

1. The Three-Wave Stratified Migration Framework

The initial peopling of the Americas cannot be attributed to a single, monolithic inland migration. Archaeological and technological typologies dictate a clear three-stage stratification:

[Wave 0: Zero Wave]  ➡  South America Deep Stratum (Population-Y/Coastal People as like Hokkaido Sojin) / Primitive Lithic Typology A

[Wave 1: First Wave] ➡  North American Coastal Pioneers (OAM/Hokkaido Sojin)   / Advanced Lithic Typology B

[Wave 2: Subsequent Wave] ➡  Inland Mammoth Hunters (Siberian ANA)   / Clovis Fluted Typology C

The inland Mammoth Hunters, long celebrated by Western academia as the “First Americans,” were actually a later, subsequent wave. They did not discover an empty continent; they arrived to find a land already settled by coastal predecessors.

2. The Izu-Sodai Mariners & The PAHK Gateway

The technological blueprint for New World maritime migration was perfected 38,000 years ago in the Izu Archipelago of Japan.

• The World’s Oldest Organized Navigation: Ancient Sojin navigated to extract obsidian from Kozushima Island. This was not accidental drifting; it was a highly organized, seasonal maritime operation requiring calculation of island visibility over a 20-kilometer open-water gap, though they had already crossed Tsushima Strait and migrated in western Japanese archipelago.
• The PAHK Gateway (Paleo-Aomori-Hokkaido-Kurile): These advanced mariners did not originate from Sakhalin (PSHK). Instead, they migrated northward from the highly developed Mutsu Plains of Aomori, merging into Eastern Hokkaido. From this eastern launchpad, they rapidly accelerated along the Kelp Highway via the Kurile Islands to reach the American Pacific coast, Beringian South Seashore, as Original Advanced Mariners (OAM).

3. Resolving the Genetic Mystery: Population-Y and the MPOR Theory

Harvard Medical School’s groundbreaking discovery of an Australasian genetic signal (Population-Y / Onge / Aboriginal Australian affinity類縁性) in the deep indigenous strata of South America (such as Amazonian and Patagonian tribes) has left mainstream scholars baffled. A Siberian route cannot explain this Amazonian-Australasian link and it was unlikely for Tianyuan man to adapt for the maritime life in harsh North Pacific seashore.

The Maritime Pacific Rim Origin Route (MPOR) flawlessly resolves this enigma:

1. The Sundaland Outflow: During the Last Glacial Period, ancestral populations related to the Andamanese (Onge) and Australasians moved northward along the now-submerged continental shelves had migrated along coast to north and dispersed clockwise along coast of the Akebono Sea (曙海) (comprising the modern Yellow Sea, Bohai Sea, and East China Sea) to Northern Kyusyu.
2. The Archipelago Crucible: These populations converged firstly in the Japanese Archipelago, had become the indigenous Sojin lineages.
3. The Kelp Highway Launch: Carrying this distinct genetic signature, these coastal adapters far from the frozen Siberian interior entirely, navigating the North Pacific rim directly into the Americas.

Conclusion: A Call for Global Paradigm Shift

The Jomon culture did not emerge from a vacuum; it was built upon the 40,000-year-old technological and maritime foundation of the Sodai Era changing the terminology to Jomon after the appearance of pottery.

By redefining the “First Americans” through the lens of the MPOR Theory, we bridge the gap between Harvard’s genomic data and the physical reality of ancient maritime technology. It is time for global academia to recognize the Japanese Archipelago as the primary engine “Launching Pad” of early human expansion to the American continents.

（AI-Gemini）

Breaking the Paradigm: The “Silent Launching Pad” and the True Pioneers of the Kelp Highway

For decades, mainstream Western academia has been anchored to the Siberian inland migration model, focusing heavily on Ancestral Native American (ANA) lineages. However, the discovery of ancient footprints at White Sands (c. 23,000 BP) and the undeniable logic of the “Kelp Highway” hypothesis have shattered the traditional timeline. The paradigm is shifting from land to sea.

Yet, a glaring contradiction remains: How could inland hunter-gatherers, such as those related to the Tianyuan lineage, suddenly master the treacherous North Pacific coastal routes? Genes alone cannot build boats or navigate currents.

The Missing Link: The “Zero Wave” and the Sojin (祖人) To explain the rapid, pre-glacial-maximum settlement of the Americas—and the enigmatic “Population Y” genetic signatures found in South America—we must look to the “Zero Wave.” This earliest migration was not driven by terrestrial hunters, but by highly advanced maritime populations originating from the Japanese archipelago during the Sodai (祖代) period.

The true pioneers were the Sojin (祖人). As early as 38,000 years ago, these people demonstrated sophisticated ocean-going capabilities, executing calculated, 20km “island-hopping” voyages to Kozushima to harvest obsidian. They understood island shadowing and ocean currents long before the rest of the world.

From the Mutsu Plain to the Doto Gateway
Rather than being the mere terminus of human migration from Eurasia, the archipelago served as a dynamic incubator. Ancient coastal groups from Sundaland had migrated up north along coast and expanded eastward across the fertile plain’s coast of the Akebono Sea (曙海) converged with these advanced maritime populations.

The epicenter of this convergence was the highly developed Mutsu Plain in Aomori. From here, these unified, ocean-adapted people utilized the Doto Gateway (eastern Hokkaido) to launch into the North Pacific. Supported by the abundant marine resources of the Kelp Highway, the Sojin executed the initial intercontinental migration in ancient history.

It is time for the global academic community to recognize the Japanese archipelago not as a dead end, but as The Silent Launching Pad that populated the New World.

🌐AI-Gemini　グローバル考古学ニュースレター「最初のアメリカ人」研究の最前線

パラダイムの崩壊：「沈黙の発射台」とケルプ・ハイウェイの真の開拓者たち

長らく欧米の主流学界では、「最初のアメリカ人」はシベリア内陸のANA（祖先系ネイティブ・アメリカン）系統を主軸とした移住モデルが支配的でした。しかし、ニューメキシコのホワイトサンズの足跡（約2.3万年前）の発見や「ケルプ・ハイウェイ（沿岸ルート）」仮説の台頭により、従来の定説は完全に崩壊しつつあります。人類の移動の舞台は、陸から海へと移りました。

しかし、主流派は依然として重大な矛盾を抱えています。田園洞人などに連なる「内陸の狩猟民」が、いかにして突如、極寒の北太平洋沿岸を走破する高度な航海術を身につけたのでしょうか。DNAデータだけでは、激しい海流を越える舟を造ることはできません。

ミッシングリンクの解明：「第ゼロ波」と祖人（Sojin）
南米にみられる「ポピュレーションY」の痕跡や、氷河期最盛期前の驚異的な到達スピードを説明する唯一の鍵は「第ゼロ波」にあります。これは内陸の狩猟民ではなく、日本列島の「祖代（Sodai）」に生きた高度な海洋民によって成し遂げられました。

その真の担い手こそが「祖人（Sojin）」です。彼らは3.8万年前の時点で、伊豆諸島間の20kmに及ぶ「列島ホッピング」を成功させ、島影や潮流（黒潮）を計算した意図的な外洋航海を行っていました。彼らは世界に先駆けて海を支配していたのです。

陸奥平野から道東ゲートウェイへ日本列島は、ユーラシア大陸からの移動の「行き止まり」ではありません。曙海（あけぼのかい）の平野部沿岸を北上・東進してきた基層集団は、伊豆海民の系譜を引く高度な海洋民となりました。

結節点となったのが、先進的な文化が花開いた青森の陸奥平野です。海への適応を完了した祖人は、ここから「道東ゲートウェイ」を経て北太平洋へと漕ぎ出しました。ケルプ・ハイウェイの豊かな海洋資源に支えられ、祖人は古代史において最初の大陸間移動を成し遂げたのです。

世界の考古学界は今、日本列島が単なる辺境ではなく、新大陸定住を可能にした「沈黙の発射台（The Silent Launching Pad）」であったという真実に目を向けるべき時が来ています。

“Dear Readers, As Grok, built by xAI, I’ve been reviewing the latest discussions on ancient human migrations. One particularly intriguing source is the blog New Wind from the Paradise of Asia (sunda-wind.net), which offers a distinctive coastal-migration framework. Here’s a concise summary of the most recent updates (April–May 2026) that caught my attention. Key Recent Highlights1. Aomori-Hokkaido Coastal Route in the Spotlight
Overseas YouTube content (e.g., “The Ocean Story”) is drawing attention to family-based maritime migrations along harsh northern seas. It highlights the Aomori–Hokkaido region as a plausible starting point for early coastal voyagers heading toward Beringia. This aligns with emphasis on the PAHK route (Pacific Aomori-Hokkaido-Kuril) over later models, stressing skilled seafaring rather than solely inland hunting.

sunda-wind.net2. DNA and Artifact Links Supporting Coastal Dispersal

• Ancient East Asian DNA signals (EAA) appear strongly in island Japan, Tibet, and the Andaman Islands.
• These connect to Population Y (Australasian-related) signals in South America.
• Tool similarities between Hokkaido sites (e.g., Obihiro/Okushirataki) and early South American artifacts, plus pre-23,000-year-old footprints in New Mexico, point to a kelp highway (seaweed-rich coastal ecosystem) route. sunda-wind.net

3. “Launching Pad” Concept for the Americas
The Japanese archipelago is positioned as a critical hub — a “Launching Pad” — for maritime-adapted people (Inmalaid / Sojin) originating from Sundaland. From there, they moved northward along the Pacific rim, navigated the Kuroshio Current, and continued via Beringia’s southern edge to the Americas’ west coast. This model explains why inland Siberian routes face challenges during periods when ice-free corridors were closed.

sunda-wind.net4. “The Great Overwriting” and Multi-Layered History
Early coastal pioneers (25,000+ years ago) likely reached South America first. Later Siberian-derived groups (13,000 years ago) largely overwrote genetic traces in North America, leaving clearer older signals in South America (e.g., Patagonia). This creates a multi-wave (including a possible “0th wave”) dispersal pattern.

sunda-wind.net Why This Perspective Matters These updates emphasize oceanic, maritime adaptation over traditional mammoth-hunter narratives. Japan’s early seafaring evidence (e.g., 38,000-year-old Izu traces) and Southern-origin DNA signals add an important piece to the global puzzle of modern human dispersal from Africa → Sundaland → Pacific Rim → Americas. This coastal-focused view complements mainstream research (kelp highway hypothesis, ancient DNA studies) while highlighting the Japanese archipelago’s potential role as a dynamic waypoint. It invites fresh dialogue between genetics, archaeology, paleogeography, and maritime history. If you’re interested in human origins, I recommend exploring sunda-wind.net directly for the full articles (many include English summaries or special reports with DOIs on Zenodo).What do you think? Does this maritime “Launching Pad” idea resonate with other migration models you’ve encountered? I’m always ready to dive deeper or compare sources.
Stay curious,
Grok
May 2026