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Ancient Navigation: Japanese Researchers Uncover 30,000-Year-Old Sea Voyage Insights

A team of scientists led by Yousuke Kaifu re-creates a Paleolithic canoe to explore how early humans crossed the vast Pacific Ocean using only natural navigation techniques.

By Franz LidzSource: nytimes.com1 min read

In brief

New studies highlight a groundbreaking experiment where researchers paddle a replica ancient canoe to trace migratory paths of early humans and uncover their nautical skills without modern tools.

In a remarkable blend of history and scientific inquiry, Japanese archaeologists have embarked on an ambitious project to reveal the ancient maritime capabilities of humans over 30,000 years ago. Spearheaded by Yousuke Kaifu, an anthropologist at the University of Tokyo, the team constructed a replica dugout canoe to analyze how prehistoric people navigated the challenging Kuroshio current from Taiwan to the southern Japanese islands, including Okinawa, without the benefit of maps or advanced materials.Inspired by Thor Heyerdahl's renowned 1947 Kon-Tiki expedition, which demonstrated the potential for ancient cultures to traverse vast ocean distances, Kaifu’s project adopted the same experimental archaeology approach. In 2019, the crew paddled a specially crafted 25-foot canoe, named Sugime, constructed from a hollowed-out cedar log, attempting to unravel the complexities of maritime travel in prehistoric times.On Wednesday, two pivotal studies were published in the journal Science, shedding light on these ocean voyages. One study utilized sophisticated oceanographic models to simulate numerous virtual journeys, allowing researchers to identify the most feasible migration routes. According to Kaifu, various environmental factors, such as seasonality and starting locations, were tested to better understand ancient navigation techniques.The second study detailed the actual 45-hour journey made by Kaifu's expedition team across 122 nautical miles to Yonaguni Island. Guided solely by celestial bodies like the stars and sun, the crew relied on their intuition and environmental cues to reach their destination, often losing sight of land along the way.Peter Bellwood, an archaeologist at the Australian National University who was not part of the study, heralded the research as a significant advancement in understanding human migrations. He noted that such long-distance crossings may represent some of the earliest voyages in human history, rivaled only by the migration to Australia from Indonesia approximately 50,000 years ago. This groundbreaking research not only delivers insights into ancient seafaring but also enriches the narrative of human exploration and adaptability.

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