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

Other days

tulip

Tulip Day
bounce

Bounce Day
donate your hair

Donate Your Hair Day
reading

Reading Day
kale

Kale Day
singles

Singles Day
blanket fort

Blanket Fort Day
my little pony

My Little Pony Day
gallery

Gallery Day
bow tie

Bow Tie Day