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

Other days

ormille

Ormille Day
singles

Singles Day
self appreciation

Self Appreciation Day
stress awareness

Stress Awareness Day
camera

Camera Day
bounce

Bounce Day
tulip

Tulip Day
self care

Self Care Day
kiss a brunette

Kiss A Brunette Day
first love

First Love Day