Over the past 14,000 years, many groups of people have inhabited the area known as Central America. Earliest human activity appears around 11,200 B.C. and is scattered throughout Costa Rica and Panama, specifically the Providence of Chiriqui. The most well-known site is that of Barriles or Sitio Barriles, which was occupied from 4600 B.C. through A.D. 1500. There were four main periods of occupation, each with its own distinctive cultural markers: The Tropical Forest Archaic period known for its rock shelters; the Concepcion Phase which marked the emergence of ceramics; the Aguas Buenas, which had the highest and most highly organized occupation; and finally the Chiriqui phase which provides evidence of a social reorganization. During this period, these people used stone tools, developed farming techniques for maize (corn), and used pottery with intricate designs. Although not as well-known as other sites and cultures of Central and South America, the early societies of this area can teach researchers a great deal about how society developed and cultures evolved.

Humans have always manipulated their environment, whether by acquiring food, making and using tools, or other aspects of daily life. They are constantly interacting with their environment on a daily basis. By using the available materials, humans have created shelter, made tools, created containers and vessels, and produced items of personal and cultural significance. Many of these resources are naturally occurring, such as stones, minerals, animal bones, or organic fibers from plants, while others are made from combining materials. The process of acquiring these materials and the manufacturing process can be traditional practices that are passed down from one generation to another. Because materials are unique to the location of different communities and cultures, by studying the types of materials, as well as animal remains found and the processes used to manipulate them, anthropologists and researchers can learn about the daily activities and lifestyles of the cultures they are studying. In what ways do you interact with your environment on a daily basis?

Archaeologists and researchers use the broken pieces of pottery or ceramics ("sherds") that they find during their search for and excavation of ancient settlements to learn many things about the people who once lived there. These pieces of pottery can provide clues about the age of the settlement that lies buried below the surface and the types of activities that took place there. Just by looking at the sherd, archaeologists can often recognize the size, shape, and date of the vessel based on the sherd's shape, the material used to temper the vessel, and the designs incised into or painted onto its surface. The date of the vessel will also apply to the settlement underneath the surface. Ancient societies changed the shape of their pottery vessels and their designs over time, sometimes quite rapidly, and archaeologists have been able to develop "ceramic chronologies" for different regions of the world. They do this by excavating and dating (using carbon-14 or other methods) ancient settlements of different ages and determining what the pottery of different time periods looked like.

The discipline of archaeology has changed dramatically since the time when average people were searching for strange or exotic objects. Today's archaeologists carefully excavate sites by recording the context and stratigraphic relationship of the objects they recover. Archaeologists are careful to take detailed notes during the entire process. When people continue to live in the same location for a long period of time, they build on the remains of those who lived there before, thus creating layers of remains that can be studied to learn how people lived and how they interacted with other groups. Excavation, however, is only part of the process of archaeology. Today the archaeologist may use techniques of the chemical or physical sciences to study materials used in the past and to determine where they were made and if they were brought into a site from somewhere else. Another approach is that of experimental archaeology where archaeologists attempt to recreate the objects of the past to understand the process by which the objects were made. Examples of experimental archaeology might be making tools (e.g., flintknapping) or by attempting to recreate some special type of pottery.