Dr. Yonatan Sahle now holds the Glenn Isaac Postdoctoral Seat in the Human Evolution Research Center at UC Berkeley. He recently gave a talk at my alma mater on the African Origins of Human Intelligence at CSU East Bay. You all may know that our early ancestors diverged from sub-Saharan populations approx 100,000 – 250,000 years ago. Our technology during this transition was prolific. Dr. Sahle discusses this, along with what he has recently found, the earliest projectile points in the world. His entire talk is listed above…. Take time to check out this excerpt from the Q&A session where he schools a racist commenter.
Sahle Y, Hutchings WK, Braun DR, Sealy JC, Morgan LE, et al. (2013) Earliest Stone-Tipped Projectiles from the Ethiopian Rift Date to >279,000 Years Ago. PLoS ONE 8(11): e78092. doi:10.1371/journal.pone.0078092