Caste systems in Africa are a form of social stratification found in numerous ethnic groups, found in over fifteen countries, particularly in the Sahel, West African and North African region. These caste systems feature endogamy, hierarchical status, inherited occupation, membership by birth, pollution concepts and restraints on commensality.
The specifics of the caste systems in Africa vary among the ethnic groups. Some societies have a rigid and strict caste system with embedded slavery, whereas others are more diffuse and complex. Countries in Africa that have societies with caste systems include Mali, Mauritania, Senegal, Gambia, Guinea, Ivory Coast, Niger, Burkina Faso, Cameroon, Liberia, Sudan, Sierra Leone, Algeria, Nigeria, Chad, Ethiopia, Somalia, Djibouti, Eritrea and others. While it is unclear when and how the caste systems developed in Africa, they are not ancient and likely developed sometime between the 9th century and 15th century in various ethnic groups, probably in conjunction with the institution of slavery.
The social stratification of the Amhara people of Ethiopia includes castes. According to Donald Levine – a professor of Sociology specializing in Ethiopian society, the Amhara society has consisted of high-ranking clans, low-ranking clans, caste groups (artisans), and slaves. The Amhara caste system was hierarchically higher than its lowest slaves strata.