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

Other days

slime

Slime Day
cat girl

Cat Girl Day
lisp

Lisp Day
brow

Brow Day
eat what you want

Eat What You Want Day
bounce

Bounce Day
aloxolt

Aloxolt Day
youth

Youth Day
pick me

Pick Me Day
bonang

Bonang Day