Species	Timeframe	Major evolutionary change	Evidence of Technology
Austrolo-phithicus Africanus	4 mya	Walking upright
Homo Habilis	3 mya	Larger brain	Hand axes
Homo Ergastor/ Homo Erectus	1.7 mya	Regular Tool use	Hand axes, fire (found)
Homo Sapiens	500,000 years ago		Hand axes, fire (found), spear (wood)
Neanderthal	130,000 years ago		Hand Axes, fire (found), spear (wood), simple dwellings
Homo Sapiens Sapiens/Cro-Magnon	90,000 years ago		Hand Axes, fire (found), spear (wood), simple dwellings
What were we doing for 55,000 years before "The Great Leap Forward?"
"The Great Leap Forward"—Jared Diamond	35,000 years ago	Evolutionary change to the systems for vocalization around 65,000 years ago?	Fire (made with bow drill), bows and arrows, specialized flint tools, compound tools, awls, mortar & pestal, net sinkers, sewing needles, boats, fishhooks, nets, harpoons, darts, spear-throwers, parkas, jewellery, stone lamps, elaborate houses, cave painting, long-distance trade, fired-clay tools, ceramics, musical instruments, oven