Oops, it doesn't look like 'slack liberation day' is a national day..

Other days

prescription drug take back

Prescription Drug Take Back Day
nae nae

Nae Nae Day
lost sock memorial

Lost Sock Memorial Day
emoji

Emoji Day
bow tie

Bow Tie Day
boy friend

Boy Friend Day
believe

Believe Day
bonang

Bonang Day
african immigrant and refugee hiv and hep awareness

African Immigrant And Refugee Hiv And Hep Awareness Day
singles

Singles Day