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

Other days

tell ur crush you like them

Tell Ur Crush You Like Them Day
ponytail

Ponytail Day
kale

Kale Day
first love

First Love Day
lumpy rug

Lumpy Rug Day
stud

Stud Day
lisp

Lisp Day
ormille

Ormille Day
tulip

Tulip Day
boba

Boba Day