Know the approximate time boundary between prehistory and history and what development it is based on. Archaeologists define prehistory as that portion of human history that extends back some 2.5 million years before the time of written documents and archives. History is the study of human experience through the time of written documents, has a much shorter time span. Written records go back to the 5,000 years ago in western Asia.
1. What percentage of human existence has been in prehistoric times?
2. Name the forms of prestate societies. (P.28 Box) Prestate societies are small-scale societies, based on the community, band, or village. They vary greatly in their degrees of political integration and sometimes divided into …show more content…

they were assumed tool-making abilities. Less looked like apelike around face and skull. The head was higher and rounder the face less protruding, the jaw smaller. More even and less specialized teeth. The molar were narrower; the pre-molars smaller, and the incisors larger and more spadelike. *both Australopithecus and H. habilis were the fruits eaters but H. habilis had larger brain with a larger cranial capacity. Walked up-right, but their hands were more powerful than humans (they climb the tree as well). An opposable allowed both powerful gripping and the precise manipulation of fine objects. They could have made complex tools.

• Homo erectus/ergaster (ergaster: c.1.9 million to c. 600,000 years ago (in Africa), 600,000 to 200,000 years ago (in Africa, Europe, & Asia): They were first species which have evidence that show they used “fire”. They evolved on in Africa, and they were the first in human line to leave Africa to Mid East, Europe, and Island Asia. They did not migrate to Siberia, Americas, or Oceania. Homo erectus and ergaster, contemporary, and later human forms belong in a second group marked by larger body mass, a modern, humanlike physique that was adaptive in more open terrain and a postcranial Skelton consist with terrestrial bipedalism. They did not climb trees often. Their teeth and jaws had similar