Land migration
The first human presence in Ivory Coast has been difficult to determine because human remains have not been well preserved in the country's humid climate. However, the presence of newly found weapon and tool fragments (specifically, polished axes cut through shale and remnants of cooking and fishing) has been interpreted as a possible indication of a large human presence during the Upper Paleolithic period (15,000 to 10,000 BC), or at the minimum, the Neolithic period.
The earliest known inhabitants of Ivory Coast have left traces scattered throughout the territory. Historians believe that they were all either displaced or absorbed by the ancestors of the present indigenous inhabitants, who migrated south into the area before the 16th century. Such groups included the Ehotilé (Aboisso), Kotrowou (Fresco), Zéhiri (Grand Lahou), Ega and Diès (Divo).
Pre-Islamic and Islamic periods
The first recorded history is found in the chronicles of North African (Berber) traders, who, from early Roman times, conducted a caravan trade across the Sahara in salt, slaves, gold, and other goods. The southern terminals of the trans-Saharan trade routes were located on the edge of the desert, and from there supplemental trade extended as far south as the edge of the rain forest. The more important terminals—Djenné, Gao, and Timbuctu—grew into major commercial centres around which the great Sudanic empires developed.
By controlling the trade routes with their powerful military forces, these empires were able to dominate neighbouring states. The Sudanic empires also became centres of Islamic education. Islam had been introduced in the western Sudan (today's Mali) by Muslim Berber traders from North Africa; it spread rapidly after the conversion of many important rulers. From the eleventh century, by which time the rulers of the Sudanic empires had embraced Islam, it spread south into the northern
