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

Other days

my little pony

My Little Pony Day
azonto is acceptable

Azonto Is Acceptable Day
emoji

Emoji Day
nail polish

Nail Polish Day
bow tie

Bow Tie Day
gum

Gum Day
me

Me Day
chocolate milkshake

Chocolate Milkshake Day
self appreciation

Self Appreciation Day
youth

Youth Day