Oops, it doesn't look like 'constitution center offers free admission on memorial day' is a national day..

Other days

tell a fairytale

Tell A Fairytale Day
african immigrant and refugee hiv and hep awareness

African Immigrant And Refugee Hiv And Hep Awareness Day
embarrass your best friend

Embarrass Your Best Friend Day
boy friend

Boy Friend Day
ruby

Ruby Day
buddy

Buddy Day
cat girl

Cat Girl Day
nae nae

Nae Nae Day
reading

Reading Day
latina equal pay

Latina Equal Pay Day