Oops, it doesn't look like 'anthem controversy end of the anthem is weak as hell anyways day' is a national day..

Other days

Aloxolt Day

Lost Sock Memorial Day

Fiancee Day

Donate Your Hair Day

Stud Day

Chocolate Milkshake Day

African Immigrant And Refugee Hiv And Hep Awareness Day

Blanket Fort Day

Hannah Day

Hot Chocolate Day