koreanhistory1-4, Exercise 2: Whose history is Balhae? (a sample; yours will differ)

Model answer:

Korean: Korean scholars usually treat Balhae as a Korean state, reading the Old Book of Tang's biezhong as "a branch of the Goguryeo people" and citing a 727/728 envoy who said Balhae had "recovered the lost land of Goguryeo" and Japanese records calling it a "state of Go[gu]ryeo".
Chinese: Chinese scholars say the Mohe formed the majority and treat it as a provincial power with autonomy; Chinese and Japanese researchers read biezhong as "distinct from Goguryeo".
Russian: Russian scholars are divided; some place it in Manchurian history and some say it was neither Korean nor Chinese.

"Late Silla" vs "Unified Silla": the article says North Korean historians reject "Unified Silla" because in their view Goryeo first unified the Korean people; the choice of name therefore carries a claim about which state is the real unifier (the article presents it as a contested framing). [My reading: naming and claiming go together, as with Balhae's "North-South States" label.]