Scientifically and historically accurate? You're kidding, right? Harmonious from beginning to end? You gotta be f-ing kidding? No time to pick that all that nonsense, so I'll let somebody else do it...
Science and history:
http://www.skepticsannotatedbible.com/science/long.html
Harmoniousness:
http://www.skepticsannotatedbible.co...a/by_name.html
And of course... homosexuality:
http://www.skepticsannotatedbible.com/gay/long.htm