In Canada, the Indian residential school system was a network of boarding schools for Indigenous peoples. The network was funded by the Canadian government's Department of Indian Affairs and administered by Christian churches. The school system was created to isolate Indigenous children from the influence of their own native culture and religion in order to assimilate them into the dominant Canadian culture. Over the course of the system's more than hundred-year existence, around 150,000 children were placed in residential schools nationally. By the 1930s about 30 percent of Indigenous children were believed to be attending residential schools. The number of school-related deaths remains unknown due to incomplete records. Estimates range from 3,200 to over 30,000.