Mine was Fall of Civilizations Episode 12, about the Inca empire:
https://fallofcivilizationspodcast.com/2021/01/12/episode-12-is-now-live/
2021-12-27 https://news.ycombinator.com/item?id=29703564 best episode
2021-12-24 https://news.ycombinator.com/item?id=29674609 best podcast
2021-12-27 https://news.ycombinator.com/item?id=29703564 best episode
2021-12-24 https://news.ycombinator.com/item?id=29674609 best podcast