Genkhis Khan created Mongol empire which was world's second largest empire by area. While Mongol conquests were exceptionally bloody, after the conquests came , a century plus of relative peaces and prosperity. Large empire under stable rule eased communication (led to creation of world's first postal system) and unified administration helped to create commerce.
The correct answer is Genetic Engineering
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5 per 1,000 because you subtract the 10 deaths from 15 and get 5.
In the end, if they did not obey they were murdered. However, they tried to defend their hunting grounds from the white men and keep that area restricted. Their resistance led to their abuse and murder from the white men.