Christian missionaries who reached Inuit communities from the late nineteenth century onward recognized angakkuit as the chief obstacle to conversion, since an alternative source of spiritual authority already commanded community trust, and worked deliberately to discredit that authority rather than simply offering a competing option. In Greenland, Danish colonial administrators and Lutheran missionaries went further, enforcing outright bans on shamanic drums and on customs such as facial tattooing through the nineteenth and early twentieth centuries, using state power rather than persuasion alone to break the practice's material culture.
Missionaries frequently recruited converted angakkuit as the first generation of Inuit Christian ministers, a strategy that exploited the office's dependence on communal recognition: once converted, a former angakkuq's endorsement of Christianity carried exactly the authority that had previously sustained traditional practice, accelerating conversion in communities where it succeeded. Access to missionary provided literacy, medical care and trade networks reinforced the shift over subsequent generations, and institutional Christianity became the predominant religious affiliation across most Inuit regions by the mid twentieth century.
Since the 1990s, community programs in Nunavut and Greenland have supported a documented revival of interest in angakkuq knowledge, framed by many participants as cultural reclamation and healing rather than a wholesale return to precolonial religious practice. This atlas records that revival as real and ongoing rather than as a closed historical chapter, while treating its specific methods as belonging to the communities practicing them rather than material for outside instruction.