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

Other days

lash

Lash Day
azonto is acceptable

Azonto Is Acceptable Day
first love

First Love Day
nae nae

Nae Nae Day
self care

Self Care Day
bubble bath

Bubble Bath Day
pumpkin

Pumpkin Day
cuddle up

Cuddle Up Day
self appreciation

Self Appreciation Day
bow tie

Bow Tie Day