History 22 Slave trade 6 Colonies 5 Colonization 4 Discovery and exploration 4 Relations 4 Administration 3 more ... Civilization 3 Discoveries in geography 3 European 3 Explorers 3 Indigenous peoples 3 International relations 3 Mass media 3 Social conditions 3 Africa 2 African diaspora 2 African influences 2 Black people 2 Foreign public opinion, European 2 Foreign relations 2 History and criticism 2 Khoikhoi (African people) 2 Museums 2 Noncitizens 2 Public opinion 2 Race relations 2 Racism 2 Racism in anthropology 2 Racism in popular culture 2 less ...