A/74/274 and to take measures to preserve, protect and restore the memory of the sites of the transatlantic trade in Africans and enslaved resistance, giving greater visibility to this history and culture through museums, monuments, visual arts and other means; (m) To intensify efforts in the field of education in order to promote an understanding and awareness of the causes, consequences and evils of racism, racial discrimination, xenophobia and related intolerance, to encourage educational authorities and the private sector, as appropriate, to develop educational materials, including textbooks and dictionaries, aimed at combating those phenomena and to review and amend textbooks and curricula to eliminate any elements that might promote racism, racial discrimination, xenophobia and related intolerance or reinforce negative stereotypes and include material that refutes such stereotypes; (n) To recognize the contribution of the continent of Africa and people of African descent to the development, diversity and richness of world civilizations and cultures, which constitute the common heritage of humankind. States should, in collaboration with relevant United Nations bodies and agencies, in particular the United Nations Educational, Scientific and Cultural Organization (UNESCO) and international donors: (i) Promote and protect the culture, identity and tangible and intangible heritage of the continent of Africa and people of African descent and maintain and foster their mode of life and forms of organization, languages and religious expressions; (ii) Set up research programmes and circulate information to deconstruct the misrepresentation of people of African descent; (iii) Consider proclaiming a national day, in countries that do not yet have such a day, to celebrate the heritage, culture and contribution to the world of people of African descent. 22/22 19-13272