Stone tools were unearthed from a quarry in Korolevo, Ukraine in the 1970s, and they’ve now been dated to over 1 million years ago — possibly 1.4 million years. According to the researchers, that’s the earliest dated evidence of any kind of human in Europe. These tools, crafted from volcanic rock in Oldowan style, suggest the adaptability and widespread colonization capabilities of early human ancestors, possibly Homo erectus, across varying environments from Africa to Europe. Fun fact: In Africa, such tools date back as far as 2.8 millions years ago.