Saw
…were used to cut wood were found at Pech-de-l'Azé cave IV in France. These tools date to 90,000-30,000 years BCE. In ancient Egypt, open (unframed) pull saws made of copper are documented as early as the Early Dynastic Period, c. 3,100–2,686 BC. Many copper saws were found in tomb No. 3471 dating to the reign…