Oops, it doesn't look like 'guard to protect the capitol on inauguration day' is a national day..

Other days

Chocolate Milkshake Day

Comfy Day

Hot Chocolate Day

Donate Your Hair Day

Frozen Yogurt Day

My Little Pony Day

Polyamory Day

Book Day

Cursing Day

African Immigrant And Refugee Hiv And Hep Awareness Day