India was, at the time I wrote my post, far and away the number one response. India does have a reasonably strong historical "high culture" of Sanskrit literature and artwork, for sure, but it was massively overrepresented due to the makeup of Blind users. Note: I was a physics and CS major, but also studied Sanskrit as well as Hindu artwork and mythology in college here in the US. Doesn't prove I am not racist, but I think you misread me.
China had accomplished much more during those eras. The problem was the same behemoth of an imperial system that made those accomplishments possible also made it possible to snuff entire fields of innovation during some petty power struggles. See how they dismantled their entire navy.
Yes I have traveled all over the world. And, I have fantastic education from a European country. And I can certainly confirm India does not “epitomize” high culture since that is the question in the title!!!!
Schools bring weekly their 6 years old kids go to the Opera, Plays, museums, castles, theaters, independent movies as part of their curriculum until they reach 18.. Those arts are then analyzed and studied as part of the course (history, French literature etc.)