Sámi
Regarding getting the Sámi to change their religion to Christianity: In the 18th century Thomas von Westen (no), a pietist, led missionary work (among the Sami), that has been called a  concerted (or special) effort. "About a century later, Niels Vibe Stockfleth (no) worked among the Sami and translated [the Bible's] New Testament into" [one of the Sami languages].