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

Other days

ormille

Ormille Day
youth

Youth Day
latina equal pay

Latina Equal Pay Day
lisp

Lisp Day
china

China Day
kiss a ginger

Kiss A Ginger Day
donate your hair

Donate Your Hair Day
law

Law Day
cuddle up

Cuddle Up Day
slime

Slime Day