According to a 2015 study, "results show that lineages in Southern Africa cluster with Western/Central African lineages at a recent time scale, whereas, eastern lineages seem to be substantially more ancient. Three moments of expansion from a Central African source are associated to L2: one migration at 70–50 ka into Eastern or Southern Africa, postglacial movements 15–10 ka into Eastern Africa; and the southward Bantu Expansion in the last 5 ka.
A 2015 study revealed that lineages in Southern Africa are clustered with Western/Central African lineages at a recent time scale, while eastern lineages appear to be substantially older. Three instances of expansion from a Central African source are linked to L2: one migration at 70–50 ka into Eastern or Southern Africa; postglacial movements 15–10 ka into Eastern Africa; and the southward Bantu Expansion in the last 5 ka.