Indigenous dates recognized by council SHARE ON: There is Treaty Recognition Week in November; National Indigenous History Month in June; and eight individual “days”. National Indigenous Languages Day – March 31 National Awareness Day for Missing and Murdered Indigenous women and Girls – May 5 National Indigenous History Month – June National Indigenous Persons Day – June 21 Orange Shirt Day – September 30 Sisters in Spirit vigil – October 4 Treaty Recognition Week – 1st Week in November Inuit Day – November 7 Louis Riel Day – November 16