The ordinance of Villers-Coterets[1] was limited to legal documents, whereas the efforts led during the Terror were aimed at eradicating local languages[2], see

The ordinance of Villers-Coterets[1] was limited to legal documents, whereas the efforts led during the Terror were aimed at eradicating local languages[2], seen as so many shackles keeping the peasants from being enlightened. [1] https://en.wikipedia.org/wiki/Ordinance_of_Villers-Cotter%C3%AAts https://en.wikipedia.org/wiki/Ordinance_of_Villers-Cotter%C3... [2] https://en.wikipedia.org/wiki/Language_policy_in_France#French_Revolution https://en.wikipedia.org/wiki/Language_policy_in_France#Fren...