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

Other days

bow tie

Bow Tie Day
fiancee

Fiancee Day
reading

Reading Day
lumpy rug

Lumpy Rug Day
ruby

Ruby Day
china

China Day
blanket fort

Blanket Fort Day
gallery

Gallery Day
kiss a ginger

Kiss A Ginger Day
coffee

Coffee Day