This is a map of the world. There are 7 continents. People from Africa are African.
People speak many languages in Africa.
If they or their parents or their grandparents or their great grandparents or great great grandparents came to the U.S. from Africa, then they are African-American. Some of the countries in Africa are Nigeria, Kenya, Somalia, Ethiopia, Zimbabwe, Sudan and Senegal. People from Asia are Asian . People from China, Hong Kong, and Taiwan speak Chinese. People from Vietnam speak Vietnamese.