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How Long have Humans Existed?

Answer

Humans have existed for about 90 million years give or take a few million. This is a much argued about subject between scientists and religious people. Look here for more information: http://www.historyworld.net/wrldhis/PlainTextHistories.asp?historyid=ab12#
Ask.com Answer for: how long have humans existed
how long have humans been on earth Source
Anatomically modern humans, homo sapiens, have existed for about 100,000 years.
Sources:
  1. PBS Evolution - http://www.pbs.org/wgbh/evolution/library/faq/c...
  2. NASA Astrobiology - http://astrobiology.nasa.gov/ask-an-astrobiolog...
See Also: Palomar Anthropology · Wikipedia
Q&A Related to "How Long have Humans Existed?"
I believe that humans exist to teach, love, laugh and be happy. Humans exist to make a difference in the world. We should all appreciate the chance we have to make a difference.
http://answers.ask.com/Society/Philosophy/why_do_h...
Humans have existed for about 90 million years give or take a few million. This is a much argued about subject between scientists and religious people. Look here for more information
http://answers.ask.com/Science/Biology/how_long_ha...
Contrary to popular belief, humans came along millions of years after the dinosaurs disappeared. Fossil evidence shows that modern humans have only existed for about 200,000 years.
http://answers.ask.com/Science/Other/how_long_have...
That depends on whether you are talking biblically or scientifically. Biblically, man has been around for about 4000 years, and scientists have found evidence of man that is over
http://answers.ask.com/Science/Other/how_many_year...
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