Diocletian made a unique move in the history of leadership. what brought him to the realization a division was necessary?
lack of strong leadership internally meant chaos reigned and money became worthless.
travel on roads by merchants for trade was no longer safe.
due to high inflation, most trade was done by bartering.
invasion by other countries drained the treasury, as war continued until lost land was regained.
the empire was too large to be ruled by one person.

Correct answer choice is :

Diocletian ended the era recognized as the Crisis of the Third Century. He worked to return Rome to its former majesty by making reforms in key areas. He imprisoned Christians, executing more than any other emperor. He forced the classical polytheistic religion of the Romans. Diocletian also made on Aurelian's economic changes. Although, many of the obstacles of the crisis civil war, barbarian attacks, disease, and economic problems would remain to trouble the empire for centuries to come and begin to the fall of the Western Roman Empire in the fifth century.

the hereditary right of a monarch to rule from the mandate of heaven

ok so u have2 basically