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Diocletian did not divide the Roman Empire into two parts, a western and an eastern one. No one ever divided this empire into an eastern and a western part.

Diocletian thoroughly restructured the administrative system of the empire. He:

1) Created the tetrarchy (rule by four), a co-emperorship with two senior emperors (Augusti) and two junior emperors (Caesars). The Augusti were in charge of the eastern and western part of the empire respectively. Each Caesar were subordinated to one of the two Augusti. The four emperors were in charge of one of the four main administrative units of the empire Diocletian created, the praetorian prefectures. They were Galliae (Gaul, Britannia and Hispania), Italia et Africa (Italy, Switzerland, and northwestern Africa). Illyricum (Austria and most of the Balkan Peninsula), and Oriens (Thrace,which was the southeastern part of the Balkans, the territories in Asia, Egypt and eastern Libya).

2) Created four imperial capitals, one for each of the emperors and each of the praetorian prefectures: Nicomedia (modern Izmit, northwestern Turkey) for Oriens, Sirmium (Sremska Mitrovica near Belgrade, Serbia) for Illyricum, Milan (in northern Italy) for Italia et Africa and Augusta Treverorum (Trier in Germany, close to the border with Luxembourg) for Galliae.

3) Decreased the size of the Roman provinces and doubled their number to decrease the power of the provincial governors and the possibility of local usurpations.

4) Grouped the provinces into twelve dioceses which were an intermediate administrative layer between the provinces and the praetorian prefectures. They were headed by a vicarius, who was a "deputy of the praetorian prefects" (or, in Diocletian's time, deputies of the emperors). The governor's main function was reduced to presiding over the lower courts, while the vicarius presided over the higher courts. Tax collection was shared between the vicarius and the governor.

5) Separated civilian and military authority. Previously the governors were also the military commanders in the provinces. Military command was given to duces (dukes) who sometimes commanded the forces of two or three of the new provinces.

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The Roman Emperor Diocletian believed that the empire was too complex and large to be ruled by one emperor. He devised and enacted the radical plan of dividing the empire in two parts. A Western and Eastern Roman empire.

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Q: What was the most significant reform that the empire Diocletian made?
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Who is in charge of the roman empire?

The One Responsible For the end of the Roman Empire is Diocletian. Diocletian Ended the Roman Empire By Splitting the Roman Empire Into West and East. Diocletian thought it would make it easier to rule. Diocletian Gave The East to His Trusted Friend. The Empire Fell Because The West Was Captured by different barbaric groups and tribes. The East Turned into The Byzantine Empire With The Capitol City Of Constantinople. The Empire was Successful until the 1400's. The Empire Was Taken Over. And Made Into A Country That Is Now Know As Turkey.


Did diocletian save the roman empire?

Diocletian could not save Rome, too much damage was done. However he did try to. Diocletian could not save Rome because he could not live forever, and he knew it, which may have been one of the reasons why he became the first emperor to retire. He did all he could to reorganize the empire and make it efficient again, but he had no control over what would be done to it after his death.


What divisions of the empire were made by the Diocletian?

.Diocletian created main four administrative divisions called praetorian prefectures. Two of them were in the western part of the empire; Galliae (Gaul, Britannia and Hispania) and Italia et Africa. Two were in the eastern part of the empire; Illyricum (most of south-eastern Europe) and Oriens (southern Romania, Bulgaria, the Roman territories in western Asia and Egypt). Below these the empire was further subdivided into 16 dioceses and about 120 provinces. Diocletian more than doubled the number of Roman provinces by subdividing them). The praetorian prefectures and the dioceses were his creations.


What was advantage of a tetrarchy the form of government Diocletian created when he came into power?

It made the empire easier to manage because responsibilities were divided among four people.


What the advantage of a tetrarchy the form of government diocletian created when he came into power?

It made the empire easier to manage because responsibilities were divided among four people.

Related questions

Who made Christianity the official religion for Roman empire?

Diocletian.


Who is in charge of the roman empire?

The One Responsible For the end of the Roman Empire is Diocletian. Diocletian Ended the Roman Empire By Splitting the Roman Empire Into West and East. Diocletian thought it would make it easier to rule. Diocletian Gave The East to His Trusted Friend. The Empire Fell Because The West Was Captured by different barbaric groups and tribes. The East Turned into The Byzantine Empire With The Capitol City Of Constantinople. The Empire was Successful until the 1400's. The Empire Was Taken Over. And Made Into A Country That Is Now Know As Turkey.


Were the changes made by diocletian and Constantine good cahnges?

Yes they were good because they made a change to the roman empire


What is a Roman tetrachy?

The Roman empire became a tetrachy after Diocletian made the split. Tetrachy means the rule by four. After Diocletian there were two Caesars and two Augustuses.


What did Diocletian made to improve the economy of the Roman Empire?

He split it into four to improve governance and ease transportation problems.


Did diocletian save the roman empire?

Diocletian could not save Rome, too much damage was done. However he did try to. Diocletian could not save Rome because he could not live forever, and he knew it, which may have been one of the reasons why he became the first emperor to retire. He did all he could to reorganize the empire and make it efficient again, but he had no control over what would be done to it after his death.


What was the advantage of tetrachy the form of government Diocletian created when he came into power?

it made the empire easier to manage for responsibilities were divided among four.


What was the most significant reform that the emperor diocletian made?

The most significant reform of Diolcetian was the creation of the tetrarchy.Diocletian subdivided the Empire into four administrative units and created the tetrarchy (rule by four). He appointed fellow general Maximian as co-emperor in 285. Maximian took overall control of the western part of the empire, while Diocletian took overall control of the eastern part. Then these two men became senior emperors (Augusti) with the creation in 293 of two junior emperors (Caesars) who were subordinates of the Augusti. Diocletian also created the four praetorian prefectures of Galliae(Gaul, Britannia and Hispania), Italia et Africa, Illyricum (the Balkan Peninsula except for Thracia, in the southeast, next to modern Turkey) and Oriens (Thracia, the territories in Asia and Egypt). . Maximian took charge of Italia et Africa and Diocletian took charge of Oriens.. The Caesars Constantius and Galerius took charge of Galliae and Illyricum respectively. One of the tasks of the Caesars was to defend the troubled frontiers along the rivers Rhine and Danube respectively, which had been under constant attack from outside.This reform had several aims:1) The bad experience of recent sole emperors suggested to Diocletian that sole emperors were vulnerable and that co-emperorship made power more secure.2) Diocletian could not create an informal co-emperorship with a son as previous emperors had done because he was hairless; he had a daughter and no sons. Therefore, he needed a trusted co-ruler from outside the family and had to create a formal co-emperorship3) There was a need to improve imperial control over the empire. There had been conflict between powerful men in every province of the empire and also attempts at usurpation in some one area. Diocletian shared controlling the provinces with three men.4) There was also a need to improve the efficiency of the defence of the vast frontiers of the empire. He entrusted the defence of the most troubled tracts of the frontiers to the Caesars.


What was the advantage of a tetrarchy the government of diocletian created when he came into power?

It made the empire easier to manage because responsibilities were divided among four people.


What divisions of the empire were made by the Diocletian?

.Diocletian created main four administrative divisions called praetorian prefectures. Two of them were in the western part of the empire; Galliae (Gaul, Britannia and Hispania) and Italia et Africa. Two were in the eastern part of the empire; Illyricum (most of south-eastern Europe) and Oriens (southern Romania, Bulgaria, the Roman territories in western Asia and Egypt). Below these the empire was further subdivided into 16 dioceses and about 120 provinces. Diocletian more than doubled the number of Roman provinces by subdividing them). The praetorian prefectures and the dioceses were his creations.


What was the advantage of a tetrarchy the form of government diocletian created when he came into the power?

It made the empire easier to manage because responsibilities were divided among four people.


What was the advantage of a tetrarchy the form of governent diocletian created when he came into power?

It made the empire easier to manage because responsibilities were divided among four people.