The Stargate rerun I’m watching right now mentions a “broca divide”:
Daniel: Sir, would you let me finish please? Okay. Um, the people on the dark side are pre-Stone Age, but the people on the light side are clearly from the Bronze Age. So what better opportunity to study the Broca Divide?
Jack [yawns]: The what?
The Broca Divide. Pierre Paul Broca was a 19th century anthropologist. He founded modern craniometry to study craniums and brains, and to compare the divide in intelligence between early species of mankind.
So what, specifically, is the Broca divide? Is this a particularly significant thing in anthropology?