The hellenistic period covers the years between 323 bc, the death of alexander the great, and 31 bc, the suicide of cleopatra. these years are referred to as hellenistic because during this time,

in an absolute  monarchy, the  monarchrules as an autocrat, with absolutepower  over the state and government — for example, the right to rule by decree, promulgate laws, and impose punishments. the  monarch isnominally sovereign but the electorate, through their legislature, exercise political sovereignty.

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