More flakes were knocked off from both sides of a stone and there is evidence that the maker had a preconceived notion of the tool's final form.Acropolis - The "high point" or citadel of an ancient Greek city, like the Acropolis in Athens.
All the sub-disciplines study aspects of past or present humans.Archaeologists generally study the physical and material remains of ancient societies, while cultural anthropologists study living cultures.Aristocracy - A governing body of upper class citizens or the system of government in which aristocrats (upper class citizens) have controlling power. Bulbar depression - A depression left on the core (where a flake's bulb of percussion was attached) when a blade or flake was struck off. Ceramics - Objects, often pottery, made of fired or baked clay.In an aristocracy people are generally born into distinct social classes and there is little or no upward mobility. Chert - A fine-grained sedimentary rock, similar to flint, that is white, pinkish, brown, gray, or blue-gray in color.Many ancient peoples, such as the Egyptians living along the Nile, depended on annual floods and alluvial deposits to replenish the soils they were farming.
Alluvial soils are usually nutrient-rich and good for agriculture.
In academic, historical, and archaeological circles, A. Dates are determined by a variety of processes, including chemical analyses (as in radiocarbon dating and thermoluminescence), data correlation (as in dendrochronology), and a variety of other tests. Acheulean - A stone tool industry, in use from about 1.6 million years ago until 125,000 years ago.
- "Abbreviation for the term Anno Domini Nostri Jesu Christi (or simply Anno Domini) which means ""in the year of our Lord Jesus Christ."" Years are counted from the traditionally recognized year of the birth of Jesus. E.)." Absolute Dating - Collective term for techniques that assign specific dates or date ranges, in calendar years, to artifacts and other archaeological finds.
Artifact - A portable object manufactured, modified, or used by humans. Years are counted back from the traditionally recognized year of Christ's birth. In antiquity, chert was one of the universally preferred materials for making stone tools (obsidian was another).
Assemblage - A group of artifacts found within the same archaeological context (locus, matrix, stratum). In academic, historical, and archaeological circles, this term is now generally replaced by Before Common Era (B. Chipped stone tool - Stone tool made by striking a stone (core or preform) with another stone (hammerstone) or other hard material (such as antler).
Physical anthropologists study human skeletons and other bodily remains.