Oops, it doesn't look like 'museum of the united states army on veterans day' is a national day..

Other days

boyfriend

Boyfriend Day
lisp

Lisp Day
tell a fairytale

Tell A Fairytale Day
self care

Self Care Day
bow tie

Bow Tie Day
chocolate milkshake

Chocolate Milkshake Day
donate your hair

Donate Your Hair Day
tell ur crush you like them

Tell Ur Crush You Like Them Day
ruby

Ruby Day
stress awareness

Stress Awareness Day