Something Sparked a Technological Revolution in China 146,000 Years Ago—Archaeologists Have Now Linked It to a Mysterious Extinct Human Species

Archaeologists have discovered sophisticated stone tools at the Lingjing site in Northern China, dating back 146,000 years, which are associated with Homo juluensis, an extinct human relative. The tools, made during a harsh ice age, reveal a technologically complex manufacturing process that challenges previous assumptions about technological development in East Asia. The discovery adds to the understanding that ancient humans in this region had advanced knowledge of stone properties and fracture mechanics, allowing them to create tools with precision and planning. The findings suggest that environmental hardship may have driven innovation and adaptation among early human populations.

• The tools were made using disc-shaped stone cores, which required careful striking to produce useful cutting flakes.
• Evidence of asymmetrical designs shows an understanding of stone’s three-dimensional properties.
• The site’s age was revised from 126,000 to 146,000 years based on calcite crystals and uranium decay measurements.
• The tools are believed to have been crafted by Homo juluensis, an extinct human species that may have interacted with modern humans.

This discovery shifts the understanding of ice age technologies in ancient China, showing that these ancient humans possessed advanced stone crafting skills. The findings also suggest that technological development was not limited to western Eurasia but may have been widespread in East Asia. The research highlights the importance of environmental challenges in shaping human innovation and adaptation, providing a richer picture of human evolution and technological complexity in the Middle Pleistocene.

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