A First Nations man talking to a crowd of people in a field (Photo by Amru Salahuddien/ Anadolu Agency via Getty Images) 

A First Nations community leader delivers a speech during a vigil for the 751 unmarked graves found at a former Catholic Indian residential school in the Cowessess First Nation community of Marieval in Saskatchewan, Canada.

The discovery of the graveyard, in late June, comes just weeks after a mass grave of 215 Indigenous children was discovered at the Kamloops Indian Residential School
in British Columbia.

These residential schools are just two of more than 130 compulsory boarding schools in Canada where, between 1863 and 1998, more than 150,000 Indigenous children were removed from their families and placed as part of a nationwide assimilationist program funded by the Canadian government. It is estimated that 6,000 Indigenous children died in these schools, a majority of which were run by the Roman Catholic Church.

Read more stories by Marcie Bianco.