Colonialism and Neo-colonialism

I need to write a brief definition of the following areas of research: 3-5 sentences each. example given)

Colonialism – Neo-colonialism – Negritude – Black Arts Movement – Black rhetoric – Neo-liberalism – Ethnopoetics – African cosmology- Africana/Black Literature – Africana World History **Postmodernism

Then i need to write an essay about one of the 10 topics