Chapter 3: reconstructing the past: analysis and interpretation. O conservation: process of treating artifacts, ecofacts, and in some cases even reverse the deterioration process. O reconstruction: like putting together a puzzle; long difficult process- can take several years. O typology: a way of organizing artifacts in categories based on their particular characteristics. O by knowing how an artifact was made allows us to understand: technology, technical abilities, social organizations, gender roles, religious beliefs of the past. O osteology: the study of the form and function of the skeleton. O skeletal age-indicator techniques: osteological techniques that are used to estimate the age (1) identifying skeletal remains as being humans at death of an individual from skeletal remains. O remodelling: occurs after growth has ceased and replaces old tissue with new formed bone to maintain bone strength from microscopic fractures from normal biomechanical stress.