Definition of "subsaharan"

Ben Bella, the Arab, "won approval of subsaharans," the U.S. State Department noted dryly.

2004, Piero Gleijeses, Conflicting Missions: Havana, Washington, and Africa, 1959-1976, page 213

[…] found them most closely linked to non-San modern subsaharans.

2005, Ian Tattersall, The Human Fossil Record, Craniodental Morphology of Genus Homo (Africa and Asia), page 34

I do not think this article says much about separation between subsaharans and the rest

1999, ypar, “Re: The egyptians were black”, in sci.anthropology (Usenet)