Jolof Empire
Historian Donald R. Wright states that "In the last decade of the fifteenth century, a group of nyancho lineages from Kaabu moved north of the Gambia River and took over an area on the southern edge of the weakening Jolof Empire. From a settlement near the mouth of the Saloum River, these lineages soon mixed with the existing Wolof and Serer population and established the state of Saloum."