Very early but also super advanced. Check out the jewelry they made with precision-drilled holes etc: https://siberiantimes.com/science/casestudy/features/f0100

Very early but also super advanced. Check out the jewelry they made with precision-drilled holes etc: https://siberiantimes.com/science/casestudy/features/f0100-stone-bracelet-is-oldest-ever-found-in-the-world/ https://siberiantimes.com/science/casestudy/features/f0100-s...