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

Other days

singles

Singles Day
martini

Martini Day
stud

Stud Day
brow

Brow Day
kale

Kale Day
donate your hair

Donate Your Hair Day
gum

Gum Day
blanket fort

Blanket Fort Day
pumpkin

Pumpkin Day
ask out your crush

Ask Out Your Crush Day