Archaeology is the study of human cultures through the recovery, documentation and analysis of material remains and environmental data, including architecture, artifacts, biofacts, human remains, and landscapes.
My perspective is a broad one. For me, archaeologists do not discover the past; they work on what remains. Archaeology is about our relationships with what is left of the past. And more - archaeology is the discipline of things - the history of design, how people get on with the material world, materiality itself.