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

Other days

boy friend

Boy Friend Day
lisp

Lisp Day
boyfriend

Boyfriend Day
lumpy rug

Lumpy Rug Day
artists

Artists Day
book

Book Day
girl friend

Girl Friend Day
boba

Boba Day
tell a fairytale

Tell A Fairytale Day
ormille

Ormille Day