Validating Christianity

[Jpark]

So the whole of Christianity hinges on 2000 year old event written about only in an ancient book from a far off culture with a very different language that was later edited by committee. Is there anything that validates the claim of this book? Or do you believe anything you read in it on faith? If it's faith why this book and not some other?

John 19:34-37 But one of the soldiers pierced His side with a spear, and immediately blood and water came out. And he who has seen has testified, and his testimony is true; and he knows that he is telling the truth, so that you may believe. For these things were done that the Scripture should be fulfilled, "Not one of His bones shall be broken." And again another Scripture says, "They shall look on Him whom they pierced."