Archaeology is a western discipline using western approaches to knowing, western ideas of time and western notions of logic. It is a construction of pasts based on material evidences discovered and interpreted by archaeologists. It contains discussions of objects and their use of tools, but it is not always about people. Please note that although one can make an assumption that there was but one series of events that make up a past, their can be multiple experiences and interpretations and meanings can be very different. Indian time is cyclical, without breaks.
Archaeologists discover the past through excavation and analysis.
Indians know the past through oral tradition. For archaeologists, the past is the key to the future. For Indians, the past is the present, is the future, is the past. For archaeologists, time has many possible paths into the future, influenced by our pasts. Stories about it provide exemplars for present behavior.