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

Other days

Latina Equal Pay Day

Raise Awerness Of Zeus Day

African Immigrant And Refugee Hiv And Hep Awareness Day

Hannah Day

My Little Pony Day

Embarrass Your Best Friend Day

Ormille Day

Hiv Awareness Day

Pick Me Day

Carpenters Day