* 286 – Emperor Diocletian elevates his general Maximian to co-emperor with the rank of Augustus and gives him control over the Western regions of the Roman Empire.

In his Easter table the year 532 AD was equated with the regnal year 248 of Emperor Diocletian.

Palace of the Roman Emperor Diocletian, around which the Croatian city of Split ( city ) | Split emerged.

Dalmatia was the birthplace of the Roman Emperor Diocletian, who, upon retirement from Emperor in AD 305, built a large palace near Salona, out of which the city of Split later developed.

Diocletian (; c. 22 December 244 – 3 December 311 ), was a Roman Emperor from 284 to 305.

Born to a family of low status in the Roman province of Dalmatia, Diocletian rose through the ranks of the military to become cavalry commander to the Emperor Carus.

After the deaths of Carus and his son Numerian on campaign in Persia, Diocletian was proclaimed Emperor.

Diocletian publicly humiliated Galerius, forcing him to walk for a mile at the head of the Imperial caravan, still clad in the purple robes of the Emperor.

In addition to his administrative and legal impact on history, the Emperor Diocletian is considered to be the founder of the city of Split in modern-day Croatia.

* Ruins of the Palace of the Emperor Diocletian at Spalatro in Dalmatia By Robert Adam, 1764.

* 244 – Diocletian, Roman Emperor ( d. 311 )

The Principate ( 27 BC-284 AD ) period was succeeded by what is known as the Dominate ( 284 AD-527 AD ), during which Emperor Diocletian tried to put the Empire on a more formal footing.

* 303 – Diocletian, Roman Emperor, publishes his edict that begins the persecution of Christians in his portion of the Empire.

* 303 – Roman Emperor Diocletian orders the destruction of the Christian church in Nicomedia, beginning eight years of Diocletianic Persecution.

When the governing of the Empire became too cumbersome for a single Emperor, the empire was divided by the emperor Diocletian into the Western and Eastern empires.

Similarly, in an edict of the Emperor Diocletian from AD 303, which set maximum prices of goods and services, the price of saddles, halters, and bridles are enumerated, as well as the price of a veterinarian for " cutting the hair and hoof of each animal.

As part of his reorganization of the empire in 300 AD, the Emperor Diocletian separated the administration of Crete from Cyrenaica and in the latter formed the new provinces of " Upper Libya " and " Lower Libya ", using the term Libya for the first time as an administrative designation.

At the request of Roman Emperor Diocletian, he became an official professor of rhetoric in Nicomedia, the voyage from Africa described in his poem Hodoeporicum.

The Emperor Diocletian ( r. 284 – 305 ) split the empire into separately administered eastern and western halves in 286 ; however, the empire was not considered divided by its inhabitants or rulers, as legal and administrative promulgations in one division were considered valid in the other.

* 305 – Diocletian and Maximian retire from the office of Roman Emperor.

* 304 – Roman Emperor Diocletian orders the beheading of the 14-year-old Pancras of Rome.

* 308 – At Carnuntum, Emperor emeritus Diocletian confers with Galerius, Augustus of the East, and Maximianus, the recently returned former Augustus of the West, in an attempt to restore order to the Roman Empire.

* 1896 – In Athens, the opening of the first modern Olympic Games is celebrated, 1, 500 years after the original games are banned by Roman Emperor Theodosius I.

* 467 – Anthemius is elevated to Emperor of the Western Roman Empire.

* 378 – Gothic War: Battle of Adrianople – A large Roman army led by Emperor Valens is defeated by the Visigoths in present-day Turkey.

* 681 – Bulgaria is founded as a Khanate on the south bank of the Danube after defeating the Byzantine armies of Emperor Constantine IV south of the Danube delta.

Schweitzer concludes that the 1st century theology, originating in the lifetimes of those who first followed Jesus, is both incompatible with, and far removed from, those beliefs later made official by the Roman Emperor Constantine in 325 CE.

The Terracotta Army commissioned by the first Chinese Emperor Qin Shi Huangdi is a collection of about 8000 life-sized ceramic soldiers and horses buried with the emperor.

In the history of India, Ashoka is referred to as Samraat Chakravartin Ashoka – the " Emperor of Emperors Ashoka ".

One of his first acts as Emperor was to persuade the Senate to grant divine honours to Hadrian, which they had at first refused ; his efforts to persuade the Senate to grant these honours is the most likely reason given for his title of Pius ( dutiful in affection ; compare pietas ).

* 435 – Deposed Ecumenical Patriarch of Constantinople Nestorius, considered the originator of Nestorianism, is exiled by Roman Emperor Theodosius II to a monastery in Egypt.

* 461 – Roman Emperor Majorian is beheaded near the river Iria in north-west Italy following his arrest and deposition by the magister militum Ricimer.

* 1346 – Dušan the Mighty is proclaimed Emperor, with the Serbian Empire occupying much of the Balkans.

* 982 – Holy Roman Emperor Otto II is defeated by the Saracens in the battle of Capo Colonna, in Calabria

Emperor David is exiled and later murdered.

** Battle of Placentia — Emperor Aurelian is defeated by the Alemanni forces invading Italy

* 378, Battle of Argentovaria — Western Emperor Gratianus is victorious over the Alemanni, yet again.

The Mughal Emperor Farrukhsiyar a grandson of Aurangzeb, is also known to have sent a letter to the Ottomans bu this time it was received by the Grand Vizier Nevşehirli Damad Ibrahim Pasha providing a graphic description of the informing him of the efforts of the Mughal commander Syed Hassan Ali Khan Barha against the Rajput and Maratha rebellion.

* 1111 – Henry V is crowned Holy Roman Emperor.

Although some sources state that Ealdred attended the coronation of Emperor Henry IV, this is not possible, as on the date that Henry was crowned, Ealdred was in England consecrating an abbot.

Alexander is apparently mentioned in the Edicts of Ashoka, as one of the recipients of the Indian Emperor Ashoka's Buddhist proselytism, although no Western historical record of this event remains.

The epigraph at the beginning of the poem is the phrase Vicisti, Galilaee, Latin for " You have conquered, O Galilean ", the apocryphal dying words of the Emperor Julian.

* 1887 – A week after being arrested by the Prussian Secret Police, Alsatian police inspector Guillaume Schnaebelé is released on order of German Emperor William I, defusing a possible war.

In Marion Zimmer Bradley's The Mists of Avalon, Aurelianus is depicted as the aging High King of Britain, a " too-ambitious " son of a Western Roman Emperor.

* 193 – Septimius Severus is proclaimed Roman Emperor by the army in Illyricum ( in the Balkans ).

* 1294 – Temür, grandson of Kublai, is elected Khagan of the Mongols and Emperor of the Yuan Dynasty with the reigning titles Oljeitu and Chengzong.

Many who side with this view disagree that Luke portrays Christianity or the Roman Empire as harmless and thus reject the apologetic view because “ Acts does not present Christians as politically harmless or law abiding for there are a large number of public controversies concerning Christianity, particularly featuring Paul .” For example, to support this view Cassidy references how Paul is accused of going against the Emperor because he is “ saying that there is another king named Jesus .” ( Acts 17: 7 ) Furthermore, there are multiple examples of Paul ’ s preaching causing uprisings in various cities ( Acts 14: 2 ; 14: 19 ; 16: 19-23 ; 17: 5 ; 17: 13-14 ; 19: 28-40 ; 21: 27 ).