293

Calendar overview 293

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293
Constantius I and Galerius become sub-emperors in the Roman Empire .
Allectus becomes ruler in the United Kingdom.
293 in other calendars
Ethiopian calendar	285/286
Buddhist calendar	836/837 (southern Buddhism); 835/836 (alternative calculation according to Buddha's Parinirvana )
Chinese calendar	49th (50th) cycle , year of the water-buffalo癸丑 ( at the beginning of the year water-rat 壬子)
Greek calendar	4th year of the 267th / 1st year of the 268th Olympiad
Jewish calendar	4053/54 (September 17-18)
Coptic calendar	9/10
Roman calendar	from urbe condita MXLVI (1046)
Seleucid era	Babylon: 603/604 (turn of the year April); Syria: 604/605 (turn of the year October)
Spanish era	331
Vikram Sambat (Nepalese Calendar)	349/350 (turn of the year April)

Events

March 1st / May 21st : The emperors (augusti) Diocletian and Maximian appoint Constantius I and Galerius as caesares - the two assume responsibility for parts of the Roman Empire , which is beset by all sides, and are responsible to the augusti . They are also determined to be the successors of Diocletian and Maximian. This system of power sharing is known as the Roman Tetrarchy .
While Rome remains nominally the capital of the empire, the rulers expand four other cities into their seats of government: Nicomedia in Asia Minor, today's İzmit becomes the capital of the Oriens prefecture. Here Diocletian takes care of the threat from the Sassanid Empire . Sirmium in Pannonia, near today's Sremska Mitrovica , becomes the capital of the Illyricum prefecture, which is subordinate to Galerius. Mediolanum, now Milan , becomes the capital of Maximian's prefecture of Italia et Africa. Treveris , today the German city of Trier , becomes the capital of Constantius, who takes over the western prefecture of Galliae.
The new Caesar Constantius attacks the renegade Carausius , who has asserted himself as ruler of Britain and Northern Gaul for years . In the port city of Bononia , now Boulogne-sur-Mer , the renegades are defeated and their rule over Gaul is ended.
Because of his defeat at Bononia, Carausius is murdered by his treasurer Allectus in Eburacum (York), who declares himself emperor.

Bahram III After the death of his father Bahram II. takes over the throne as Shah of the Sassanid Empire . Most of the nobles refused to pay homage to him.

Coin of Narseh

Four months after the enthronement of Bahram III. Narseh, supported by many nobles, gained control of the Persian Empire . He was previously head of the viceroyalty of Armenia .

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