2 ms·

Stone tools predate the evolution of H. sapiens. Key words to search are "Oldowan" and"Acheulean" tools.

• _Microft 6y ago
  Thanks a lot - knowing the appropriate key words and terms makes all the difference when looking up new things.
• deleted 6y ago
  [deleted]
• baybal2 6y ago
  I am so embarassed of my ignorance