As humans, we tend to wonder where exactly we came from, and some of us make a living off figuring out the answer. It was long thought by anthropologists that homo sapiens appeared in Africa roughly 200 millennia ago. That theory, however, has been called into question with newly found humanoid skeletal fragments that were one hundred millennia older than they expected.
Miners working in Marrakesh at the beginning of the 1960s discovered a shard of human bone in the limestone wall they were taking apart. When another bone appeared, archaeologists made it their mission to dig up the site and analyze the other remains, which were deemed to be around 40 millennia old. Excavation of the area stopped for four decades, with researchers having assumed there was nothing left to find.