 
<translate> Don amsa tambayar da ke sama, jumlar da ta dace ita ce: Tarihin Babbar Ganuwar China ya fara ne lokacin da masarautun da jihohi daban-daban suka gina a lokacin bazara da kaka (771 - 476 BC) da kuma Warring States periods (475 - 221 BC) an haɗa su da sarki na farko na China, Qin Shi Huang, don kare sabon daular Qin da ya kafa (221 - 206 BC) daga mamayewa daga nomads daga Inner Asia. Amsar ita ce 771 - 476 BC. <eng> To answer the above question, the relevant sentence is: The history of the Great Wall of China began when fortifications built by various states during the Spring and Autumn (771 -- 476 BC) and Warring States periods (475 -- 221 BC) were connected by the first emperor of China, Qin Shi Huang, to protect his newly founded Qin dynasty (221 -- 206 BC) against incursions by nomads from Inner Asia. The answer is 771 -- 476 BC. 