Oops, it doesn't look like 'attack dan day' is a national day..

Other days

cursing

Cursing Day
frozen yogurt

Frozen Yogurt Day
prescription drug take back

Prescription Drug Take Back Day
african immigrant and refugee hiv and hep awareness

African Immigrant And Refugee Hiv And Hep Awareness Day
first love

First Love Day
lumpy rug

Lumpy Rug Day
reading

Reading Day
donate your hair

Donate Your Hair Day
polyamory

Polyamory Day
my little pony

My Little Pony Day