Camlann sits at the center of the wider historicity debate over King Arthur, and it illustrates the debate's limits as clearly as any single piece of evidence in the whole tradition. The Annales Cambriae entry that first names the battle was compiled in the tenth century from earlier material of uncertain reliability, several centuries after the year, usually reckoned as 537, that it assigns to the event, and no earlier source corroborates it independently. Historians arguing for a historical kernel behind the Arthur legend read the entry's very bareness as a point in its favor, a terse annal recording a real battle and a real casualty list with none of the literary elaboration a later inventor might have been tempted to add. Historians skeptical of any historical Arthur read the same bareness the opposite way, as evidence that a name and a battle circulating in oral legend were folded into a written chronicle without any independent verification of what, if anything, actually happened. Neither position can be conclusively settled from the evidence that survives, and the location itself, a place called Camlann or Camblam, has never been identified with confidence: proposed sites range from Cornwall to the Scottish borders, none of them supported by anything more than similarity of name or local tradition. Camlann remains, in the strict sense, an open question rather than a settled fact in either direction.