Oops, it doesn't look like 'championship game bruins win and celtics win awesome sports day' is a national day..

Other days

Aloxolt Day

Pampering Day

Healing Day

Appreciate Yaself A Lil Extra Day

Slime Day

Reading Day

African Immigrant And Refugee Hiv And Hep Awareness Day

Buddy Day

Lost Sock Memorial Day

Emoji Day