People have always wondered where we and the universe came from. Every mythological, pagan and contemporary religion (including atheism) has come up with a creation story. To say that Christianity is not true because it also describes creation, is not valid.
It is interesting to note, however, that the more science learns, the closer science (human knowledge) comes to the Bible. Genesis has not changed since it was written 3,500 years ago. Science continually changes, continually moving in a direction that is in less conflict with the Bible. Continually moving closer to Genesis.