Archaeological subfields are typically characterised by a focus on a specific method, type of material, geographical, chronological, or other thematic categories. Among academic disciplines, archaeology, in particular, often can be found in cross-disciplinary research due to the inherent multidisciplinary and geographical nature of the field in general. The lived human experience is vast and varied and reconstructing those lifeways and their consequences requires problem solving from numerous angles. In general, archaeologists work backwards with their research, starting with what is already known.