One way man has evolved over time is the brain. One of the earliest human to be found was during the Homo habilis period 2.2 – 1.6 million years ago (Mcnamme, 1982,p.42) Researchers found that humans in this era had a brain capacity between 500-650 mL. The homo habilis was known to be the handy man because, researcher found tools with the fossils of these humans. During the Homo erectus period 1.8 – 0.3 (Leakey, 1977,p.196) million years ago the brain capacity of a human had increased to between 750-1250 mL (Leakey, 1977,p.196). As the brain increased it is known that humans during this era developed weapons, tools, and learned to build a controlled fire, but it is still not known for sure that they had any kind of speech or communication developed. In the Archaic Homo sapiens era 400 â€

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