Thomas Wilson began his tenure as Bishop of Mann in 1698 and was succeeded by Mark Hildesley. Both men held positive views of Manx; Wilson was the first person to publish a book in Manx, a translation of "The Principles and Duties of Christianity" ("Coyrie Sodjey"), and Hildesley successfully promoted the use of Manx as the language of instruction in schools. The New Testament was first published in Manx in 1767. In the late 18th century, nearly every school was teaching in English. This decline continued into the 19th century, as English gradually became the primary language spoken on the Isle of Man.