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.
Duke Xian of Qin (424–362 BC)
In 383 BC, the second year of his reign, Duke Xian moved the Qin capital from the long-time capital Yong (in present-day Fengxiang, Shaanxi) several hundred kilometers east to Yueyang (櫟陽, in present-day Yanliang District of Xi'an). The move shifted the center of Qin closer to other states such as Wei, Han, and Zhao, facilitated commerce, and weakened the powerful aristocratic clans that were entrenched in the old capital.