146,000-Year-Old Discovery Rewrites the Story of Human Creativity
A 146,000-year-old archaeological site in central China, previously thought to be younger, reveals *Homo juluensis* crafted sophisticated stone tools during an ice age, challenging assumptions about human creativity and technological development in East Asia. Uranium-thorium dating of calcite crystals inside a deer-like rib bone confirmed the site’s age, indicating advanced planning and toolmaking by early humans with large brains and mixed Neanderthal-like traits.
Scientists have revised the age of the Lingjing archaeological site in central China to 146,000 years ago, placing its stone tools at the height of a severe ice age. The discovery contradicts the long-held belief that human creativity thrived only during warmer periods, instead suggesting that harsh conditions may have driven innovation. Researchers led by Yuchao Zhao from the Field Museum in Chicago analyzed calcite crystals inside a deer-like rib bone found at the site, using uranium-thorium dating to pinpoint the timeline. The tools, crafted by *Homo juluensis*—a species with large brains and traits resembling both Neanderthals and modern humans—demonstrate deliberate, organized stoneworking. Some cores were balanced, while others featured specialized striking surfaces, indicating controlled flake production and an understanding of stone properties. This level of sophistication challenges the assumption that East Asian early humans lagged behind their European and African counterparts in technological advancement. Lingjing’s findings suggest *Homo juluensis* butchered animals like deer at the site, leaving behind tools that reflect advanced cognitive abilities. The uneven cores, shaped for specific functions, imply planning and precision, similar to techniques used by Neanderthals and African ancestors. This discovery reshapes the narrative of human evolution, showing that complex toolmaking emerged independently in multiple regions during challenging environmental conditions. The site was previously estimated to be much younger, but the new dating method—comparing uranium and thorium decay in calcite crystals—provides an accurate timeline. Zhangyang Li of Shandong University, senior author of the study published in the *Journal of Human Evolution*, highlights how the tools reveal a three-dimensional approach to stoneworking, not random breakage. This suggests early humans in East Asia possessed problem-solving skills comparable to those in other parts of the world.
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