Physical anthropologists study human skeletons and other bodily remains.
Biological anthropologists deal primarily with the evolution of humans and primates. "Present" is academically defined as the year 1950 (the year when this term was invented).
In the New World the term refers to a period when permanent settlements were becoming more common and human groups were making the transition from hunting-and-gathering to agriculture. Bronze Age - A prehistoric period in the Old World, dating roughly from 3000-1000 B. E, defined by the widespread use of bronze as a material for tools, weapons, and ornaments. The lids were usually modeled to represent animal-headed gods or the heads of important people.
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).
This is a good way to search for patterns or changes in soil color or plant density (possible indicators of buried features) that may not be visible to a person walking on the ground.
Agora - An open-air place of congregation in an ancient Greek city, generally the public square or marketplace, that served as a political, civic, religious, and commercial center.
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.
AMS - Accelerator Mass Spectrometry is an absolute dating technique that measures the amount of carbon-14 in an organic object and provides a rough indication of its age. Anthropology - The study of human beings, including their behavior, biology, linguistics, and social and cultural variations.
In the United States, anthropology is divided into four sub-disciplines: archaeology, biological/physical anthropology, cultural anthropology, and linguistics.
Alidade - An optical surveyor's instrument used in the field to create topographic maps and top plans.