We could take it a stage further in fact. Paris exists. The Louvre exists. The Renaissance happened. Therefore The da Vinci Code is a true historical account of actual events.
At the age of five, Skagra decided emphatically that God did not exist. This revelation tends to make most people in the universe who have it react in one of two ways - with relief or with despair. Only Skagra responded to it by thinking, 'Wait a second. That means there's a situation vacant.'