Ancient CivilizationsNeanderthal Workshop Reveals Advanced Tool Maintenance 70,000 Years Ago Posted on August 23, 2025 by Administrator Archaeologists in Poland have unearthed compelling evidence of sophisticated Neanderthal behavior at a 70,000-year-old workshop site in the Zwoleńka River Valley. The remarkable discovery demonstrates that these ancient humans operated specialized tool maintenance centers where they repaired and sharpened implements used for butchering massive Ice Age animals including mammoths, rhinoceroses, and horses.