1.9-million-year-old discovery rewrites the story of human evolution

Researchers have revised the age of 'Ubeidiya, an archaeological site in the Jordan Valley, to at least 1.9 million years old, making it one of the earliest known locations of human activity outside Africa. Using three independent dating methods—cosmogenic isotope analysis, paleomagnetic dating, and uranium-lead dating of fossilized snail shells—scientists led by Hebrew University's Ari Matmon established a timeline hundreds of thousands of years older than previous estimates. The findings place 'Ubeidiya alongside Georgia's Dmanisi as a crucial site for understanding early human migration and the spread of Acheulean stone tool technology into the Levant.