Archaeological evidence would support centralized groups of Yemaek tribes in the 2nd century BC, but there is no direct evidence that would suggest these Yemaek groups were known as or would identify themselves as Goguryeo.
Arkæologiske beviser støtter tilstedeværelse af grupper af Yemaek-stammer i det 2. århundrede f.Kr., men der er ingen direkte beviser for, at disse Yemaek-grupper blev kendt som eller ville identificere sig som Goguryeo.