The Ionian Age ran from 0.781 to 0.126 million years ago. Details to come...
0.6 million years ago, Homo heidelbergensis was capable of speech, partially due to an expanded brain size of 1200 cubic centimetres.
0.5 million years ago or 500,000 years ago, it is thought that more sophisticated stone axes, compared to those ones found in 2.6 million years ago (show link to the blog site).
230,000 years ago, the species of Man known as Neanderthals evolved with the average brain capacity of 1,300 cubic centimetres.
200,000 years ago, the species of man known as Homo sapiens evolved also with the same brain capacity as Neanderthals.
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