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

Other days

eat what you want

Eat What You Want Day
boba

Boba Day
nae nae

Nae Nae Day
donate your hair

Donate Your Hair Day
boy friend

Boy Friend Day
polyamory

Polyamory Day
bow tie

Bow Tie Day
cuddle up

Cuddle Up Day
ruby

Ruby Day
get funky

Get Funky Day