18:50Witness HistoryUNESCO and race and toleranceBBC World Service Duration: 9 minutes Mon 28th Dec 2020, 18:50 on BBC World Service Americas and the CaribbeanAvailable for over a yearListen nowHow UN's educational and cultural wing fought racism and advocated tolerance. Show more GenresFactualHistoryFormatsDocumentariesBrandWitness History Source: BBC Online