Oops, it doesn't look like 'aborigines day' is a national day..

Other days

law

Law Day
stress awareness

Stress Awareness Day
ask out your crush

Ask Out Your Crush Day
blanket fort

Blanket Fort Day
gum

Gum Day
tulip

Tulip Day
hoodie

Hoodie Day
kale

Kale Day
buddy

Buddy Day
ponytail

Ponytail Day