A pleasure exploring this historical church after dark 😍 It was originally established as "The Mission of Our Lady of the Assumption among the Hurons in Detroit" in 1728 by the Jesuit missionary Fr. Armand De La Richardie, S.J. In 1765, a 60 by 30 feet (18 m × 9 m) church was erected for the Hurons and some sixty French settler families. Assumption became an official, canonical institution in 1767 under its first pastor, Fr. Pierre Potier S.J. who remained at his post until his death in 1781.

That year, the bishop of Quebec sent his Vicar-General, Fr. Francois-Xavier Hubert to be pastor of Assumption parish. Fr. Hubert initiated plans to build a rectory and a school. A shortage of land for this project was rectified by a donation of land from the Hurons on March 6, 1782. The rectory was built in 1785 and in 1786 as coadjutor to the bishop of Quebec, Fr. Hubert, who had since relocated for his new post, contributed to the building of a new church and sent two women from Quebec to establish a school.