Journée du chandail orange

Etymology
. From the colour of the shirt worn by a survivor of the residential school system, that was forcibly removed by Christian missionaries attempting to assimilate her into the culture of 's settlers, and away from her culture.

Proper noun

 * 1)  September 30th; Orange Shirt Day; a Canadian national observance first observed in 2013

Coordinate terms

 * a coincident Canadian national holiday first observed in 2021