Construction
General Meng Tian, working under the orders of the Chinese Qin emperor Shi Huangdi, completes building the 2400-km- (1500-mi-) long Great Wall in the north, running from the Yellow Sea to the deserts of what is now Turkistan. Meng Tian's workers take just seven years (this date is estimated; Shi Huangdi is now thought to have taken power in 221 bce). See also 300 bce Construction.




