Oops, it doesn't look like 'historical park for the veterans day' is a national day..

Other days

polyamory

Polyamory Day
slime

Slime Day
ormille

Ormille Day
blanket fort

Blanket Fort Day
pumpkin

Pumpkin Day
self appreciation

Self Appreciation Day
gum

Gum Day
artists

Artists Day
prescription drug take back

Prescription Drug Take Back Day
self care

Self Care Day