Oops, it doesn't look like 'stadium for independence day' is a national day..

Other days

lumpy rug

Lumpy Rug Day
kale

Kale Day
bow tie

Bow Tie Day
eat what you want

Eat What You Want Day
ruby

Ruby Day
coffee

Coffee Day
unicorn

Unicorn Day
cat girl

Cat Girl Day
gum

Gum Day
healing

Healing Day