If you held an OID debt instrument for a calendar year but did not receive a Form 1099-OID, refer to the discussions under Figuring OID on Long-Term Debt Instruments, later, for information on the OID you must report.
Although the Almoravids had substantial contacts with the Maghrib, influences from the black Sudanic kingdoms of Ghana, Mali, and Songhai played an important role in Mauritania's history for about 700 years--from the eighth to the fifteenth century.
The Songhai kingdom was the last major one in the region. Its fall did not bring an end to kingdoms in West Africa. Kingdoms that survived were Guinea, Benin in Nigeria, Ashanti in present day Ghana and Dahomey, north of Benin. These kingdoms continued the Trans Saharan trade with the Arab states in North Africa.