Question: Yeelen (Bambara for "brightness"/"light") is a 1987 Malian film directed by Souleymane Cissé, though the era is undefined, it is presumably set in the 13th century in which empire in West Africa, from 1230 to 1670?
Sentence (from "Mali Empire"): The Mali Empire (Manding: "Nyeni" or "Niani"; also historically referred to as the Manden Kurufaba, sometimes shortened to Manden) was an empire in West Africa from 1230 to 1670.
Relevant evidence: Yes