Many questions concerning an ancestor with an unknown background can be helped along using information about place. Everyone lives somewhere. Your ancestor was born in a particular place because their parents lived there. Were they just passing through, or had they settled there for generations?
One of my objectives is to help geneaologists reconstruct the places their ancestors lived. This can be done in many ways, but my focus is on the physical space. Mapping an area of historic interest can help genealogists not only to determine who lived near their ancestors, but also to understand the kind of life those people lived.