Oops, it doesn't look like 'twitter thread about corbyn and brexit day' is a national day..

Other days

African Immigrant And Refugee Hiv And Hep Awareness Day

Tell Ur Crush You Like Them Day

Kiss A Ginger Day

Kale Day

Bubble Bath Day

Raise Awerness Of Zeus Day

Believe Day

My Little Pony Day

Pampering Day

Hot Chocolate Day