Oops, it doesn't look like 'cathedral lit up orange tonight for gun violence awareness day' is a national day..

Other days

camera

Camera Day
brow

Brow Day
cuddle up

Cuddle Up Day
african immigrant and refugee hiv and hep awareness

African Immigrant And Refugee Hiv And Hep Awareness Day
lost sock memorial

Lost Sock Memorial Day
stress awareness

Stress Awareness Day
lumpy rug

Lumpy Rug Day
fiancee

Fiancee Day
my little pony

My Little Pony Day
me

Me Day