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

Other days

law

Law Day
pick me

Pick Me Day
slime

Slime Day
first love

First Love Day
eat what you want

Eat What You Want Day
tulip

Tulip Day
comfy

Comfy Day
boba

Boba Day
lost sock memorial

Lost Sock Memorial Day
bow tie

Bow Tie Day