Stone Age Britons pay surprise visit

Scientists excavating ancient river sediment along England’s southeastern coast have unearthed stone tools from roughly 700,000 years ago, the earliest evidence of human ancestors in northern Europe.

IN LIKE FLINT. A 700,000-year-old flint tool found in southeastern England features a sharpened edge. Natural History Museum

A team led by Simon A. Parfitt of University College London found 32 pieces of worked flint, including a cutting implement with a sharpened edge and a fist-size rock from which smaller, tool-size pieces had been hammered.