David Boyett, DNA Surname Project Coordinator Tampa Florida:
2009, renamed to Haplogroup E1b1a now E-M2
Haplogroup E3a (now E1b1a) is thought to be associated with the group that spread agriculture across the central and southern parts of Africa during the last 3000 years. The Bantu culture appears to have been the agent of the spread of this agricultural revolution. The Bantu Expansion shaped the language and culture of peoples throughout the western, central, and southern parts of the continent. That expansion also left a legacy of haplogroup E3a (now E1b1a) distributed across southern and central Africa. The distribution of E3a in Africa is shown as the green sections in the map on page 1204 of the study of African Y chromosomes by Cruciani et al.