In 221 BC, Ying Zheng, first emperor of the Qin Dynasty, put an end to the 250-odd years of rivalry among the independent principalities during the Warring States Period, and established the first ...
In c. 220 B.C., under Qin Shi Huang, sections of earlier fortifications were joined together to form a united defence system against invasions from the north. Construction continued up to the Ming ...
In 221 B.C., Ying Zheng, ruler of the State of Qin and a man of great talent and bold vision, ended the 250-odd years of rivalry among the independent principalities during the Warring States ...