Post-docs Huw Groucutt and Eleanor Scerri, at the School of Archaeology, are part of a team of researchers whose paper in Nature: Ecology & Evolution demonstrates that Homo sapiens reached Al Wusta, a site in Saudi Arabia, 85,000 years ago. This is 25,000 years earlier than previously understood.
You can read more on the following websites.
University of Oxford School of Archaeology website
The Guardian website