Mr. John, When u write something, write something meaningful. Taking a christain name and bashing Bible does not prove any authenticity.
Whether it is Davinci Code,or Last tEmptation or Satanic Verses or M.F.Hussain's painting or all such things is made for publicity and selling their product.
Its all art. Don't claim historical authenticity for that
Davinci Code is a fiction. Even Dan brown did not claim beyond that. Don't try to make that as research paper done by very famous scientists/archeologists. You read , njoy and forget