The excavations uncovered the oldest Oldowan stone tools ever found at Oldupai Gorge, dating to ~2 million years ago. Excavations in long sequences of stratified sediments and dated volcanic horizons indicated hominin presence at Ewass Oldupai from 2.0 to 1.8 million years ago. Credit: Michael Petraglia. Read Time:
The UNESCO World Heritage Site Olduvai Gorge (now Oldupai Gorge) in northern Tanzania, known as the cradle of mankind , achieved worldwide fame, in particular through Louis and Mary Leakey. As reported in Nature Communications , new interdisciplinary field research has now led to the discovery of the oldest archaeological site to date in the Oldupai Gorge and shows that early humans used diverse habitats amid ecological changes over a period of 200,000 years.