One significant indication that the European feudal system was effective was that "<span>Similar systems developed in China and Japan" although it should be noted that this isn't enough evidence to prove that it was economically successful.</span>
England backed down due to economic pressure
That was <span>A) Eli Whitney
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Answer:
Explanation:
California's Mines After the Gold Rush As gold became more and more difficult to reach, the growing industrialization of mining drove more and more miners from independence into wage labor. The new technique of hydraulic mining, developed in 1853, brought enormous profits but destroyed much of the region's landscape.
