In the early 19th century, if you were a geologist and made a claim about the age of the Earth, you had to explain whether that was consistent or how it was or wasn't consistent with the age of the Earth implied by the account in Genesis.
Au début du 19ème, un géologue qui se prononce sur l'âge de la Terre, doit expliquer si c'est cohérent ou non avec l'âge de la Terre dans l'histoire de la Genèse.