- Skulls in Ukraine reveal early modern humans came from the East. These two individuals interbred with Neanderthals and with the very first European Homo sapiens, who arrived around 45,000 years ago and were thought to have become extinct following a major climatic catastrophe. https://theconversation.com/skulls-in-ukraine-reveal-early-modern-humans-came-from-the-east-216553 22 comments science