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

Other days

cuddle up

Cuddle Up Day
bow tie

Bow Tie Day
self care

Self Care Day
artists

Artists Day
pampering

Pampering Day
fiancee

Fiancee Day
stress awareness

Stress Awareness Day
cursing

Cursing Day
law

Law Day
prosecco

Prosecco Day