object museum oldest egyptian drilling tool found

A small copper-alloy object, excavated nearly a century ago from a predynastic cemetery at Badari in Upper Egypt, has been re-identified as the world's oldest known Egyptian bow drill. Dating to the late 4th millennium BCE, the tool pushes back the earliest evidence for this technology in Egypt by about 2,000 years, revealing that Egyptian craftspeople mastered efficient rotary drilling much earlier than previously thought.