Qin dynasty
Note: King Zhaoxiang of Qin (秦昭襄王) had already been ruling Qin for 51 years when Qin annihilated the Zhou dynasty; however the other six warring states were still independent regimes. Some Chinese historiographers thus used the next year (the 52nd year of King Zhaoxiang of Qin) as the official succession from the Zhou dynasty.
Qin dynasty
During the Warring States period preceding the Qin dynasty, the major states vying for dominance were Yan, Zhao, Qi, Chu, Han, Wei and Qin. The rulers of these states styled themselves as kings, rather than using the titles of lower nobility they had previously held. However, none elevated himself to believe that he had the "Mandate of Heaven", as the Zhou kings had claimed, nor that he had the right to offer sacrifices—they left this to the Zhou rulers.