Yes, the IGNORANT old illerate desert dwellers, predominantly wandering about before the development of science, (biology, genetics*, psychology, medicine (as we know it), etc..
*and we've only recently developed knowledge of DNA. Indeed, it hasn't yet permeated our culture as part of our worldview.
I believe the word you wanted was illiterate. Those perhaps nomadic (i'm bemused that you make that assumption) people were ignorant of things as basic as that the earth is a globe and that it is not the center of the universe or even of the solar system (things the Greeks in the same time period worked out for themselves with "naked eye" observation). The ancient Greeks had also applied systematic study to anatomy and the symptoms and course of disease to develop medical sciences to a degree which would not be surpassed for thousands of years. Darwin and Wallace both developed a theory of natural selection more than 150 years ago, by observations on morphology. The discovery of and investigation of DNA has only served to confirm the theoretical basis.
They were ignorant, superstitious hillbillies, for whatever else one may say they were.