Original sentence: The founder in 1842, Paul Chomedey de Maisonneuve,  built a fort (1843) in the name of the Société Notre-Dame de Montreal for the conversion of the Indians in New France, a company created by the Sulpicians Jean-Jacques Olier and Jérôme Le Royer, Sieur de La Dauversière in 1642.The original site of the city of Montreal known as Ville-Marie, is precisely known
Edited sentence: The founder, Paul Chomedey de Maisonneuve,  built there a fort (1843) in the name of the Société Notre-Dame de Montreal for the conversion of the Indians in New France, a company created by the Sulpicians Jean-Jacques Olier and Jérôme Le Royer, Sieur de La Dauversière in 1642.The original site  of Montreal in 1842  known as Ville-Marie, is precisely known