Long-term ethnography aims to study cultures over extended periods of time through repeated fieldwork. This allows researchers to document changes within cultures and understand how circumstances influence cultural evolution. Prior ethnographic studies have typically only provided a single perspective; long-term ethnography allows obtaining secondary opinions to address biases, anomalies, or neglected areas from the first study. The objectives of long-term ethnography are to analyze cultural changes over time, study the impacts of internal and external influences, and provide alternative viewpoints through diverse research teams or methodologies.