Take the following as truth: On what was once a Celtic burial ground (originally named Mont-Tombe), the bishop of the nearby town of Avranches began by building an oratory in the eighth century ' at the prompting, he claimed, of the Archangel Michael.
Then the following statement: "The bishop of Avranches himself laid the cornerstone for the oratory." is true, false, or inconclusive?
Answer: Inconclusive