Through time they changed it based on problems on hand, and the changes through time.
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Answer:
Qin Shihuangdi's strategy helped China
Explanation:
Qin Shihuangdi's strategy helped China because, it increased the size of china. However, it also hurt China because it cost many lives, and he used harsh measures to maintain his power.
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Boosted economic prosperity through expansion of trade especially due to the rapid expansion and development of the 7000 mile silk road. The building of this road ensured that trade in farm produce developed a great deal.
Modern era was is the term that historians use to describe the historical period between the beginning of the 16th century and the 21st century.