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

Other days

raise awerness of zeus

Raise Awerness Of Zeus Day
lisp

Lisp Day
azonto is acceptable

Azonto Is Acceptable Day
reading

Reading Day
gum

Gum Day
china

China Day
brow

Brow Day
cuddle up

Cuddle Up Day
law

Law Day
slime

Slime Day