The day is intended to educate and remind Canadians about the history of residential schools, honour the victims and celebrate the survivors.

https://www.canada.ca/en/canadian-heritage/news/2020/09/government-of-canada-introduces-legislation-to-establish-national-day-for-truth-and-reconciliation.html

Orange Shirt Day in memory of a piece of clothing then-six-year-old Phyllis Webstad had taken from her on her first day at a residential school in 1973.

https://www.orangeshirtday.org/