At the beginning of the Warring States Period, Zhao was one of the weakest states but gained strength during the reign of King Wuling of Zhao: by the end of the Period, Zhao was the only state strong enough to oppose the mighty Qin.
Zhao was one of the weakest states. This was at the beginning of the Warring States Period. Zhao gained strength during the reign of King Wuling of Zhao. This was at the beginning of the Warring States Period. Zhao was the only state strong enough to oppose the mighty Qin. This was by the end of the Period.