Oops, it doesn't look like 'mighty eighth museum air force museum on memorial day' is a national day..

Other days

artists

Artists Day

special education

Special Education Day

eat what you want

Eat What You Want Day

boy friend

Boy Friend Day

cuddle up

Cuddle Up Day

reading

Reading Day

blanket fort

Blanket Fort Day

prosecco

Prosecco Day

ride the wind

Ride The Wind Day

boba

Boba Day