Refer to the timeline in “From Barter to Bitcoin.” Based on the information in the timeline, Europeans start using banknotes. What happens next? European governments stop using coins and only rely on paper money. The United States introduces its first national currency with the paper “greenback.” European governments begin printing and backing their own banknotes. The Chinese follow by producing their own paper currency.

European governments begin printing and backing their own banknotes.

Explanation:

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c.

worked constantly and gave many sincere speeches about the importance of independence

this means that germany had to pay the allied countries. reparations are/is essentially payment for something that they have done wrong, so after ww1, germany was forced to pay reparations so they could replenish the allied countries resources' that they had lost during the war.