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.
A comienzos del s. XIX, si eras geólogo y te pronunciabas respecto a la edad de la Tierra, tenías que explicar si concordaba o cómo concordaba o no con la edad de la Tierra establecida en el Génesis.