How did europe's commercial revolution affect social structure?

It increased the incomes of many lower-class citizens, which created somewhat of a "middle class," which had previously not existed.

One of the main ways in which Europe's commercial revolution affected social structure is that it increased the incomes of many lower-class citizens, which created somewhat of a "middle class," which had previously not existed.

Explanation:

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the monroe doctrine is the best known u.s. policy toward the western hemisphere. buried in a routine annual message delivered to congress by president james monroe in december 1823, the doctrine warns european nations that the united states would not tolerate further colonization or puppet monarchs.

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