If you click the triangles next to the categories, there are some subcategories grouped by place—like:

https://en.wikipedia.org/wiki/Category:Television_series_set_in_5th-century_Anglo-Saxon_England

Methinks you were either looking at a century BC by accident, or specifically the 7th century. Although it's China stuff, not SE Asia necessarily.

I never complained. Teacher would tie it in with something that we were supposed to know so we had to pay attention and write about it later on. It's one of the examples of productive laziness (which some call efficiency) I've thought about many times since.

To be fair, I only saw a few episodes of the first season and had no expectations or notions when I stumbled on it; it seemed fine for what it was.

The other shows I mentioned, though, are actually favorites in our house.