The u. s. postal service, a legal entity created to exercise some of the powers of government, is an example of

The U.S postal service is an example of government monopoly

A government monopoly is a government corporation that is created government to provide a certain good or service and is protected from competition. For instance, the law bars competitors from providing certain services that are offered by the U.S postal services.

julius caesar turned the roman republic into the roman empire by coming in and taking the "dictator" role during the time of a civil war (elites vs lower classes) winning battles and reputation, then declaring him dictator for life

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