Stitching them together might be an interesting project in itself. As you get closer to the present day, and there's more material, they inevitably get more and

Stitching them together might be an interesting project in itself. As you get closer to the present day, and there's more material, they inevitably get more and more tightly focused. I'm imagining some kind of timeline/world map hybrid thing. Click a location, slide the timeline around, see podcast episodes that cover that time and place.