How popular is Gemma? Gemma is a very popular first name for females (#1711 out of 4276, Top 40%) and also a very popular surname for both adults and children (#28049 out of 150436, Top 19%). (2000 U.S. CENSUS)
Chomsky and Gould hypothesize that language may have evolved simply because the physical structure of the brain evolved, or because cognitive structures that were used for things like tool making or rule learning were also good for complex communication.
Berwick and Chomsky therefore suggest language emerged approximately between 200,000 years ago and 60,000 years ago (between the arrival of the first anatomically modern humans in southern Africa, and the last exodus from Africa, respectivelty).