And each of those lenses may show us the past as if through some funhouse mirror, but if we're conscious about it, we can at least recognize the distortions. Studying Africa reminds us that we need to look at lots of sources, and lots of kinds of sources, if we want to get a fuller picture of the past. If we relied only on written sources, it would be far too easy to fall into the old trap of seeing Africa as backwards and uncivilized. Through approaching it with multiple lenses, we discover a complicated, diverse place that was sometimes rich and sometimes not. And when you look at it that way, it becomes not separate from, but part of our history. Thanks for watching. I'll see you next week.