I have two scars on my face; neither one's very visible anymore. One I received at age three (late 1992), falling face-first into a dry riverbed on my first camping trip. I landed hard, my forehead colliding with a crescent-shaped rock. I remember my father turning me over, my vision going red, the blood flowing into my scleras and pupils. The rock missed my right eye by millimeters.Β Β When J.K. Rowling published Harry Potter and the Philosopher's Stone in 1997 my peers began calling me "Harry." Dark-haired, bespectacled, similar scar -- whole package. My comeback: "They should call Harry Potter 'Chris Gorrie', I had the scar first." Not until ten years later, when The Deathly Hallows was released, did I realize Harry was "born" in 1980.
Since Harry was never really born other than as a character in Rowling's mind, I guess that, technically, I still had the scar first.