There is no consensus on the applicability of the term "proto-three kingdoms" to refer to the political state of affairs in the centuries before the emergence of the three primary Korean states – Silla, Paekche, and Koguryô. Nevertheless, the term is retained here for organizational purposes. It applies to that period extending from roughly the first to the fourth century CE, when the three kingdoms emerge as definitive centralized monarchies and hegemons in their respective portions of the peninsula. It is a period when Koguryô would emerge to eventually overcome the Han Chinese commandery at Lolang and become the most powerful state in the region, and when Paekche and Silla would emerge from out of the south Han tribes on the Korean peninsula.
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