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

Other days

youth

Youth Day
gum

Gum Day
latina equal pay

Latina Equal Pay Day
coffee

Coffee Day
nae nae

Nae Nae Day
lumpy rug

Lumpy Rug Day
lisp

Lisp Day
me

Me Day
my little pony

My Little Pony Day
self care

Self Care Day