Diocletian and Maximian were both present on 11 November 308, to see Galerius appoint Licinius to be Augustus in place of Severus, who had died at the hands of Maxentius.

* Licinius is in Thessalonica executed on charge of conspiring, and raising troops against Constantine I.

* Constantine I and Licinius accept Christianity, they agree on a policy of religious toleration.

Born to a Dacian peasant family in Moesia Superior, Licinius accompanied his close childhood friend, the future emperor Galerius, on the Persian expedition in 298.

Upon his return to the east, Galerius elevated Licinius to the rank of Augustus in the West on November 11, 308.

Then on the death of Galerius, in May 311, Licinius entered into an agreement with Maximinus Daia, to share the eastern provinces between them.

Their marriage was the occasion for the jointly-issued " Edict of Milan " that reissued Galerius ' previous edict allowing Christianity to be professed in the Empire, with additional dispositions that restored confiscated properties to Christian congregations and exempted Christian clergy from municipal civic duties. The redaction of the edict as reproduced by Lactantius-who follows the text affixed by Licinius in Nicomedia on June 14 313, after Maximinus ' defeat-uses a neutral language, expressing a will to propitiate " any Divinity whatsoever in the seat of the heavens ".

Unfortuately for Daia, Licinius ' army succeeded in breaking through, forcing Daia to retreat to Tarsus where Licinius continued to press him on land and sea.

The next year a new war erupted, when Licinius named Valerius Valens co-emperor, only for Licinius to suffer a humiliating defeat on the plain of Mardia ( also known as Campus Ardiensis ) in Thrace.

However, it's exactly on the matter of his regulation of Church affiars that Licinius ’ s name was dragged through the mud by Eusebius of Caesarea, who charges him with expelling Christians from the Palace and ordering military sacrifice, as well as interfering with the Church's internal procedures and organization.

Finally, on Licinius ’ s death, his memory was branded with infamy ; his statues were thrown down ; and by edict, all his laws and judicial proceedings during his reign were abolished.

He came to an open rupture with Licinius in 313, he summoned an army of 70, 000 men, but still sustained a crushing defeat at the Battle of Tzirallum, in the neighbourhood of Heraclea Perinthus, on the April 30, and fled, first to Nicomedia and afterwards to Tarsus, where he died the following August.

Eventually, on the eve of his clash with Licinius, he accepted Galerius ' edict ; after being defeated by Licinius, shortly before his death at Tarsus, he eventually issued an edict of tolerance on his own, granting Christians the rights of assembling, of building churches, and the restoration of their confiscated properties.

On hearing the news, Maximinus mobilized against Licinius, and seized Asia Minor before meeting Licinius on the Bosphorus to arrange terms for peace.

Though the persecution of Christians officially ended in 313, when Constantine I and his co-emperor, Licinius, issued the Edict of Milan which mandated toleration of Christians in the Roman Empire and freedom of worship, Theodotus martyrdom and persecution only ended in 324 and it is this event that the Church annually commemorates on March 2.

The censors L. Veturius and P. Licinius compelled M. Livius, who had been banished, on his restoration to the city, to be shaved, and to lay aside his dirty appearance, and then, but not until then, to come into the Senate.

Consequently, in political cases, the two men were often engaged on the same side ( e. g. in defence of Gaius Rabirius, Lucius Licinius Murena, Publius Cornelius Sulla, and Titus Annius Milo ).

Gaius, taking no part in the fighting and despairing at the bloodshed, fled to the Temple of Diana on the Aventine where he intended to commit suicide but was stopped by his friends Pomponius and Licinius.

* 313 – The Edict of Milan, signed by Constantine the Great and co-emperor Valerius Licinius granting religious freedom throughout the Roman Empire, is posted in Nicomedia.

A crisis precipitated by the rejection of religious freedom by Licinius, Emperor of the Eastern Roman Empire, in favor of paganism resulted in a civil war in 324 that placed Constantine firmly in control of a reunited Empire.

The Edict of Milan ( Edictum Mediolanense ) was a letter signed by emperors Constantine I and Licinius that proclaimed religious freedom in the Roman Empire.

Since the Edict was composed for publication in the east by Licinius, on his hoped for victory over Maximinus, it was expressive of the religious policy accepted by Licinius, a pagan, rather than that of Constantine, already a committed Christian.

* Publius Licinius Tegula, the author of a religious poem, sung by the Roman virgins in 200 BC.

The religious aspect of the conflict was reflected in Licinius drawing up his battle lines with images of the pagan gods of Rome prominently displayed, whilst Constantine's army fought under his talismanic Christian standard, the labarum.

Early in 313, Constantine and fellow Emperor Licinius reached an agreement at Milan that they would grant freedom of religion to the Christians and other religions and restore church property.

The conflict between Arianism and Trinitarian beliefs was the first major doctrinal confrontation in the Church after the legalization of Christianity by the Roman Emperors Constantine I and Licinius.

Stability emerged after the defeat of Licinius by Constantine in 324.

* 314 – Roman Emperor Licinius is defeated by his colleague Constantine I at the Battle of Cibalae, and loses his European territories.

This agreement proved disastrous: by 308 Maxentius had become de facto ruler of Italy and Africa even without any imperial rank, and neither Constantine nor Maximinus — who had both been Caesares since 306 and 305 respectively — were prepared to tolerate the promotion of the Augustus Licinius as their superior.

Maximinus committed suicide at Tarsus in 313 after being defeated in battle by Licinius.

* Third Servile War ends ; Slave uprising under leadership of Spartacus is crushed by a Roman army under Marcus Licinius Crassus.

Only the year before he had blocked the senatorial award of a triumph to Marcus Licinius Crassus, despite the latter's acclamation in the field as Imperator and his eminent merit by all traditional criteria-barring only full consulship.

He was defeated by two other candidates, Decimus Junius Silanus and Lucius Licinius Murena, ultimately crushing his political ambitions.

Crassus ' homonymous grandfather, M. Licinius Crassus ( praetor c. 126 BC ), was facetiously given the Greek nickname Agelastus ( the grim ) by his contemporary Gaius Lucilius, the famous inventor of Roman satire, who asserted that he smiled once in his whole life.

In response to the first threat, Rome's best general, Lucius Licinius Lucullus ( consul in 74 BC ), was sent to defeat Mithridates, followed shortly by his brother Varro Lucullus ( consul in 73 BC ).

* Marcus Licinius Crassus is a principal character in the 1960 film Spartacus, played by actor Laurence Olivier.

* Marcus Licinius Crassus is a principal character in the 2004 TV film, Spartacus, played by actor Angus Macfadyen.

Eusebius then continues to describe the labarum, the military standard used by Constantine in his later wars against Licinius, showing the Chi-Rho sign.

* Publius Licinius Valerianus Minor or Valerian the Younger was another son of Valerian I. Consul in 265, he was probably killed by usurpers, some time between the capture of his father in 260 and the assassination of his brother Gallienus in 268.

A cultivated cherry is recorded as having been brought to Rome by Lucius Licinius Lucullus from northeastern Anatolia, modern day Turkey, also known as the Pontus region, in 72 BC.

* Publius Licinius Crassus, Roman consul, censor and father of Marcus Licinius Crassus ( killed by Marians invading Rome )

Vespasian accepted, and through negotiations by Titus, joined forces with Gaius Licinius Mucianus, governor of Syria.

* Scipio Aemilianus is sent by the Roman general, Lucius Licinius Lucullus, to Numidia to obtain some elephants from the Numidian king Masinissa, the friend of his grandfather Scipio Africanus.

* Marcus Licinius Crassus campaigns successfully in the Balkans, killing the king of the Bastarnae with his own hand, but is denied the right to dedicate the spolia opima by Octavian.

In the resulting Battle of Callicinus the Macedonians, led by their king, Perseus, are victorious over a Roman force led by consul Publius Licinius Crassus.