8 In order, therefore, that the commemoration of Columbus may be worthily observed, religion must give her assistance to the secular ceremonies. And as at the time of the first news of the discovery public thanksgiving was offered by the command of the Sovereign Pontiff to Almighty God, so now we have resolved to act in like manner in celebrating the anniversary of this auspicious event.
Source: Quarto Abeunte Saeculo (Vatican.va)