The first species of the genus Homo, evolved in South and East Africa in the late Pliocene or early Pleistocene (2 - 2.5 million years before present) when it diverged from the Australopithecines (Australopithecines and Hominenes are collectively referred to as Hominids). The Stone Age is that ancient time period during which, humans created tools from stone (for lack of better technology). Wood, bones and other materials would also be used, but stone (in particular flint) was shaped for use as cutting tools and weapons. The date range of this period is ambiguous, disputed, and variable according to the region in question. While it is possible to speak of a general 'stone age' period for the whole of humanity, some groups never developed metal-smelting technology, so remained in a 'stone age' until they encountered technologically developed cultures. However, in general, it is believed that this period began somewhere between 2 and 5 million years ago and began with the first human (or pre-human) tool-making. The period was followed by the Bronze Age, during which bronze tools became common; this transition occurred between 6000 and 2500 BC.... More • http://en.wikipedia. ... /Stone_age View • Books • Images • Videos • Search Related • Periods • Stone Age • 4th Millennium BC