Scientists such as anthropologists divide hominids into three different types based on their body shapes and lifestyles. The first type of hominids are referred to as Homo habilis, which means ‘person with abilities.' It is believed that Homo habilis lived until about 1.5 million years ago.
The second type of early human living on the Earth was Homo erectus, which means ‘person who walks upright.' Homo erectus lived on the Earth until about 150,000 years ago.
The final type of hominid living on the Earth is Homo sapien. Homo sapien means ‘person who can think’. All humans living on the Earth today are Homo sapiens.
We need to learn to set our course by the stars, not by the lights of every passing ship.
Gen. Omar N. Bradley
The Rosetta Stone, discovered during Napoleon''s invasion of Egypt, carved in 196 BC, was the key to understanding Egyptian hieroglyphics, because it repeated a royal decree in three different scripts, one of which was Greek. From the Greek the other two could be deciphered.