Attempts to assimilate Indigenous peoples were rooted in imperial colonialism, which centred around a European worldview of cultural practice and an understanding of land ownership based on the Doctrine of Discovery.[4]:47–50 As explained in the executive summary of the Truth and Reconciliation Commission of Canada's (TRC) final report: "Underlying these arguments was the belief that the colonizers were bringing civilization to savage people who could never civilize themselves. The 'civilizing mission' rested on a belief of racial and cultural superiority."[4]:50