Well, from a non-Catholic perspective how do we know any book is true? How do we really know if a history book is true? When Columbus found America they did not have computers (not that I know the date) but I am sure history books give a date. Even today, the media only tells us what they want us to know. Who really knows the truth about the recession?
From my opinion as a Catholic, I choose to believe it is true because I feel a strong pull in my heart towards God and life is much better when I believe the bible is true. Unless of course it is a protestant bible that threw out some important things