The Bible is hands down more credible then Darwin's books of theories. Now I'm not saying that Charles' books are not good for observing the difference in species of birds and how they have adapted to certain areas with specific beaks for an example. But if you are looking at historically accurate The Bible hands down wins the fact race, as being that so many pieces of the Bible have been confirmed in other writing from ancient Rome of which have 100% guaranteed the historical accuracy. Now it also depends on what version of the bible you read as well, between Catholic and most Protestant churches the Catholics add the Apocrypha books whereas Protestants believe that isn't part of the Word of God. I've studied both Darwin's Theories and The Bible and from sure fact, I have to say that the Bible is more credible then Darwin's theories.