Oops, it doesn't look like 'a picture of my wife and i on our wedding day' is a national day..

Other days

Prescription Drug Take Back Day

Lisp Day

Ponytail Day

Martini Day

Promposal Day

Donate Your Hair Day

Raise Awerness Of Zeus Day

Brow Day

African Immigrant And Refugee Hiv And Hep Awareness Day

Azonto Is Acceptable Day