Why is the Bible important?

 I think we should start this conversation with.. what is the Bible?

"The Bible is the holy scripture of the Christian religion, purporting to tell the history of the Earth from its earliest creation to the spread of Christianity in the first century A.D. " www.history.com

So why would that be important?

A historical document that goes all the way back to the beginning of physical life with eye witness accounts of historical events and the possibility of their being someone who is the savior of the world, not mention foresight into the end of existence. I would think that would be an amazingly important document, or collection of documents collected into one book. 

Now imagine that the documents are correct in their entirety, even give or take a "jot or tittle". Wouldn't this mean that the contents of this collection are feasibly true? 

Wouldn't that make them ... Truth? 

So please tell me.. why is the Bible important?