If you're interested in finding out a little bit more about that, I recommend watching the Zeitgeist movie. You will probably find the part about religions quite interesting.

But... the only thing 'scientific' about creationism and the stories in the bible, is how it all literally refers to astronomic events. It's quite likely the reason why so many of the religious center stories share almost all the details.

I have to add that the Zeitgeist movie isn't flawless, but it does a good job most of the time.