Calling upon a massive reservoir of evidence that has been hiding in plain sight, this deeply researched and engrossing book not only overturns a long held historical narrative that deep geological time was discovered in the eighteenth century, but also chronicles the formation of that narrative in the crucible of intellectual and political change at the end of the eighteenth century. Dal Prete brilliantly reveals the peaceful coexistence of multiple theories about the age of the earth from the Middle Ages up through the seventeenth century, then their politicization as the new ideology of science asserted eternal war between science and religion, a fable, as Dal Prete lays bare, that has endured up to the present.