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

Other days

My Little Pony Day

Nae Nae Day

Azonto Is Acceptable Day

First Love Day

Hoodie Day

Prosecco Day

Latina Equal Pay Day

Donate Your Hair Day

Raise Awerness Of Zeus Day

Ask Out Your Crush Day