The methods and sources used to investigate at least ONE historical controversy or mystery that has challenged historians or archaeologists, such as in the analysis of unidentified human remains
evaluating various methods for investigating the ancient past (for example, stratigraphy to date discoveries; DNA testing to identify past individuals from their remains (such as Egyptian mummies) as well as common diseases)
using a cross-sectional drawing of the earth’s surface from an archaeological excavation to identify the evidence located at various layers (stratigraphy) and what it reveals about change over time (for example, a charcoal layer containing human remains and weapons may indicate the capture and destruction of an ancient settlement, such as Troy)