The royal families in the united kingdom, sweden, spain, and the netherlands are present-day examples of:

The royal families of United Kingdom, Sweden, Spain, and of the Netherlands are existing examples of Monarchies. A monarchy is a system of a government, wherein a family on behalf of a dynasty, represents the nation's nationwide distinctiveness, while the leader, the crowned head, exercises the role of authority.

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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