Homo ergaster (or erectus) makes large stone…
609165 BCE to 360334 BCE
Homo ergaster (or erectus) makes large stone hand-axes out of flint and quartzite, at first quite rough and later "retouched" by additional, more subtle strikes at the sides of the flakes during the period known as the Acheulean, from seven hundred thousand to three hundred thousand years before the present.
Images
Skull of Homo ergaster (I took this photo in october 2005) Skull KNM-ER 3733 discovered by Bernard Ngeneo in 1975 (Kenya) 27 October 2005 (original upload date)