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

Other days

chocolate milkshake

Chocolate Milkshake Day
hannah

Hannah Day
book

Book Day
cat girl

Cat Girl Day
one

One Day
latina equal pay

Latina Equal Pay Day
kiss a ginger

Kiss A Ginger Day
slime

Slime Day
youth

Youth Day
ruby

Ruby Day