Earth

Revision as of 08:27, 14 April 2008 by Jamesm (talk | contribs) (New page: * 646 billion years ago Earth's gases came together through a densification process. * 5 billion years ago Earth first became solid and the first primeval life began. * The process of ...)
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  • 646 billion years ago Earth's gases came together through a densification process.
  • 5 billion years ago Earth first became solid and the first primeval life began.
  • The process of development of the pure-Earth human can be classified into 3 principal phases when it concerns a physically recognisable human.
  1. 8.5-6 million years ago.
  2. 4.8-4.5 million years ago.
    • 4.5 million years ago the human developed reason and understanding
  3. 3.9-1.5 million years ago.
      • 500