Day of Remembrance of TAST

de bene esse: literally, of well-being, morally acceptable but subject to future validation or exception

Recognising today as International Day for the Remembrance of the Slave Trade and its Abolition...
http://www.unesco.org/new/en/culture/themes/dialogue/the-slave-route/right-box/related-information/23-august-international-day-for-the-remembrance-of-the-slave-trade-and-of-its-abolition/