The object depicted was long thought to be a stone. A close-up of "The Melun Diptych", ca. 1455, Jean Fouquet. Courtesy Steven Kangas and authors. The Melun Diptych takes its name from the Northern ...

Hand axes are fairly common finds at sites dating between 2 million and 1 million years old. These sturdy tools have two sides (also called faces) and a sharp edge at one end. But hand axes are ...