▁August ▁which ▁clos es ▁with ▁a ▁silent ▁ceremony ▁on ▁the ▁banks ▁of ▁the ▁river ▁Th ames . ▁ ▁Other ▁international ▁observ ances ▁Other ▁compar able ▁international ▁observ ances ▁include : ▁▁ ▁International ▁Day ▁of ▁Comm em oration ▁in ▁Memory ▁of ▁the ▁Vict ims ▁of ▁the ▁Hol oca ust ▁- ▁ 2 7 ▁January ▁ ▁International ▁Day ▁for ▁the ▁El im ination ▁of ▁Ra cial ▁Disc rim ination ▁- ▁ 2 1 ▁March ▁ ▁International ▁Day ▁of ▁Rem emb rance ▁of ▁the ▁Vict ims ▁of ▁S la very ▁and ▁the ▁Trans at l antic ▁S lave ▁Trade ▁- ▁ 2 5 ▁March ▁▁ ▁International ▁Day ▁for ▁Tol er ance ▁- ▁ 1 6 ▁November ▁ ▁International ▁Day ▁for ▁the ▁Ab ol ition ▁of ▁S la very ▁- ▁ 2 ▁December ▁ ▁and : ▁▁ ▁the ▁International ▁Year ▁to ▁Comm emor ate ▁the ▁Str ug gle ▁against ▁S la very ▁and ▁its ▁Ab ol ition ▁in ▁ 2 0 0 4 ▁ ▁the ▁International ▁Year ▁for ▁People ▁of ▁African ▁Des cent ▁in ▁ 2 0 1 1 ▁ ▁the ▁International ▁Dec ade ▁for ▁People ▁of ▁African ▁Des cent ▁ 2 0 1 5 - 2 0 2 4 ▁ ▁References ▁ ▁External ▁links ▁▁ 2 3 ▁August : ▁International ▁Day ▁for ▁the ▁Rem emb rance ▁of ▁the ▁S lave ▁Trade ▁and ▁its ▁Ab ol ition ▁▁ ▁S la very ▁Rem emb rance ▁National ▁Memorial ▁Service ▁ 2 0 1 6 , ▁London ▁ ▁International ▁S la very ▁Rem emb rance ▁Day ▁ 2 0 1