LINCOLNSHIRE, ENGLAND—Archaeological work conducted by Allen Archaeology ahead of the construction of a new building at the University of Lincoln has uncovered hundreds of flint tools that are thought to date to the Mesolithic period, when the site was a sandbar at the edge of a body of water. The 11,000-year-old tools include tiny cutting blades and blades for hunting, butchering, and preparing plants. “There’s a known Mesolithic flint scatter close to this particular site from somewhere between 9000 B.C. and 5000 B.C. and we have found a continuation of that,” project manager Gavin Glover told The Lincolnshire Echo. To read about early carpentry, go to "The Neolithic Toolkit."