What characteristics of the confederate states of america made it a confederal government when compared to the government of the united states

They institutionalized slavery. Made its protection a part of the constitution called the CSA'S peculiar institution. That characteristic in comparison was the online government. 

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On april 20, 1814, the dethroned emperor left france for the isle of  elba, where he was exiled under the terms of the treaty of fontainebleau.napoleon  would be allowed to ruleelba, which had 12,000 inhabitants. perhaps cruelly, the treaty allowed him to retain the title "emperor."