"Class" is a set of connected, but not identical, theoretical approaches to social division in human societies, including past human societies. Historians regularly make use of "class" in their writings, but with so many approaches to "class," how can we tell which approach a historian is using in their writing?
What major approaches to "class" as a theoretical category do historians commonly use?
An ideal answer would outline a summary name for each approach, describe how it approaches class and what class means in this approach, and point to major theoreticians or historians using their approach. A "Heads of Title" approach would be the ideal answer.
An ideal answer would not need to fully specify each approach to class. Hopefully a subsequent series of questions could ask for the use of class in particular ways in historiography if these are of interest.