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

Other days

slime

Slime Day
raise awerness of zeus

Raise Awerness Of Zeus Day
bow tie

Bow Tie Day
nae nae

Nae Nae Day
china

China Day
gum

Gum Day
bounce

Bounce Day
offer

Offer Day
promposal

Promposal Day
stud

Stud Day