[o11c]

Eh, the history doesn't support that meme; only the details and not the existence was allegedly burned (if it even happened at all). It's pretty well established that there were 7 major states (Qin, Qi, Chu, Yan, and the 3 Jin (Han, Wei, Zhao); notably, not including the official Zhou king) at the end of the Warring States period, and the Qin conquered the other 6 within a decade.

(Fun fact: the lesser-known state of Wey actually lasted longer than Wei due to not being worth conquering. In modern Chinese they are pronounced the same, but at the time they weren't.)