… of artifacts to the Mississauga First Nation. “It’s been a long … Brent Niganobe, chief of Mississauga First Nation. The human remains and the … -old atlatl dart used by First Nations peoples that was uncovered in …… of artifacts to the Mississauga First Nation. “It’s been a long … Brent Niganobe, chief of Mississauga First Nation. The human remains and the … -old atlatl dart used by First Nations peoples that was uncovered in …