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

Other days

brow

Brow Day
cat girl

Cat Girl Day
bounce

Bounce Day
tell a fairytale

Tell A Fairytale Day
self care

Self Care Day
youth

Youth Day
camera

Camera Day
latina equal pay

Latina Equal Pay Day
gum

Gum Day
cuddle up

Cuddle Up Day