In a last attempt to protect it, Constantine attacked the enemy sword raised ; however he was defeated and killed.

Co-emperor alongside his brothers, his short reign saw the beginnings of conflict emerge between the sons of Constantine the Great, and his attempt to exert his perceived rights of primogeniture ended up causing his death in a failed invasion of Italy in 340.

Individuals such as Edward Yourdon, Larry Constantine, Gerald Weinberg, Tom DeMarco, and David Parnas began to publish articles and books with research results in an attempt to professionalize the software-development processes.

When Constantine converted to Christianity the majority of his subjects were still pagans and the Roman Imperial cult of the divinity of the emperor, expressed through the traditional burning of candles and the offering of incense to the emperor ’ s image, was tolerated for a period because it would have been politically dangerous to attempt to suppress it.

After an abortive attempt to placate both Constantine and Maximinus with the meaningless title filius Augusti (" son of the Augustus ", essentially an alternative title for Caesar ), they both had to be recognised as Augusti in 309.

* December 13 – King Constantine II of Greece flees the country when his coup attempt fails.

* September 17 – King Constantine II of Greece forms a new government with Prime Minister Stephanos Stephanopoulos, in an attempt to end a 2-year-old political crisis.

" Panella notes that the insignia were likely hidden by Maxentius ' supporters in an attempt to preserve the emperor's memory after he was defeated at the Battle of Milvian Bridge by Constantine.

In 1967, King Constantine II left Athens for Kavala in an unsuccessful attempt to launch a counter-coup against the military junta.

To Heraclius ' son, Constantine III, John addressed his apology for Pope Honorius I, in which he deprecated the attempt to connect the name of Honorius with Monothelism.

In 949 Constantine launched a new fleet of 100 ships ( 20 dromons, 64 chelandia, and 10 galleys ) against the Arab corsairs hiding in Crete, but like his father's attempt to retake the island in 911, this attempt also failed.

To Venizelos ' view, since Constantine allowed the Bulgarians to enter the city, he now passed the responsibility of a possible conflict with them to him, in an attempt to deny his initial fault.

To Constantine, it was an attempt by Venizelos to get involved in clearly military issues.

The death of Leo VI on 11 May 912 and the accession of his infant son Constantine VII under the guidance of Leo's brother Alexander, who expelled Leo's wife Zoe from the palace, constituted a great opportunity for Simeon to attempt another campaign against Constantinople, the conquest of which remained the dream of his life.

A telegram was despatched by the Revolutionary Committee to Venizelos in Paris requesting him to collaborate with the new government in the attempt to rescue Greece from the catastrophe in which she had been involved by King Constantine and his advisers, and a new cabinet was formed with Alexandros Zaimis, as premier, and Nikolaos Sokrates Politis, as foreign minister-both Venizelists.

Whilst Constantine was in prison, there was an attempt to install another antipope, Philip, followed by the election of Pope Stephen III.

* Admiral Constantine — The captain of the Imperial ship that attacks the Tau in an attempt to retrieve the Ethereal after Kais rescues him.

It is possible, but not proven, that he sought to rouse the Byzantine Emperor Tiberius II Constantine to take up arms against the Arian king ; but in any case the attempt was without result.

Constantine also worked closely with trade unions in an attempt to ease the fears and suspicions of white workers.

Although the colonels ' strong anti-communist, pro-NATO, and pro-Western views appealed to the United States, President Lyndon B. Johnson — in an attempt to avoid an international backlash — told Constantine that it would be best to replace the junta with a new government.

Sarus withdrew and Stilicho decided to seal off the Alps to prevent Constantine from threatening Italy.

Obviously upset that Constantine had neglected them in his efforts to establish his own empire and had failed to defend them against the assaults they had hoped he would prevent, the Roman inhabitants of Britain and Armorica rebelled against Constantine's authority and expelled his officials.

The coup leaders met Constantine at his residence in Tatoi, which was surrounded by tanks to prevent resistance.

On the evening of the coronation, the royal family decided to leave their palace in Athens to go to Tatoi, but the inhabitants of the capital refused to see their sovereign leave in exile and crowds formed outside the palace to prevent Constantine and his family from leaving.

He said that King Constantine had undertaken before the war no engagement which could prevent the freedom of the foreign policy of the country.

Critics claim that Constantine II did nothing to prevent the government ( and especially his chosen prime minister, Kollias ) from legally instituting the authoritarian government to come.

Although effective while he ruled, Diocletian's Tetrarchic system collapsed after his abdication under the competing dynastic claims of Maxentius and Constantine, sons of Maximian and Constantius respectively.

Maximian's son Maxentius, and Constantius ' son Constantine would then become Caesars.

In preparation for their future roles, Constantine and Maxentius were taken to Diocletian's court in Nicomedia.

Most in the crowd believed they knew what would follow ; Constantine and Maxentius, the only adult sons of a reigning Emperor, men who had long been preparing to succeed their fathers, would be granted the title of Caesar.

Constantius succeeded Maximian as Augustus of the West, but Constantine and Maxentius were entirely ignored in the transition of power.

* 315 – The Arch of Constantine is completed near the Colosseum at Rome to commemorate Constantine I's victory over Maxentius at the Milvian Bridge.

* 312 – Battle of Milvian Bridge: Constantine I defeats Maxentius, becoming the sole Roman emperor.

During his pontificate, in October 312, Constantine defeated Maxentius and assumed control over Rome.

By 308 there were therefore no fewer than four claimants to the rank of Augustus ( Galerius, Constantine, Maximian and Maxentius ), and only one to that of Caesar ( Maximinus ).

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.

Maxentius was defeated by Constantine at the Battle of the Milvian Bridge in 312 and subsequently killed.

Constantine I | Constantine joined the secessionist alliance by marrying Maximianus ' daughter, Fausta, and by supporting Maxentius in Italy.

* Constantine the Great, from the Basilica of Maxentius and Constantine, Rome, is started to be made.

* October 28 – Battle of Milvian Bridge: Constantine I defeats usurper Maxentius at the Milvian Bridge and becomes the only Roman Emperor in the West.

* Basilica of Maxentius and Constantine ( Basilica Nova ), Rome, is finished.

* Constantine the Great, from the Basilica of Maxentius and Constantine, Rome, is finished.

* Basilica of Maxentius and Constantine ( Basilica Nova ), Rome, is started to be built.

* April – Roman usurper Maxentius banishes his father, Maximian, who flees to the court of Constantine the Great in Augusta Treverorum ( modern Trier ).

* November 11 – The Congress of Carnuntum: Attempting to keep peace within the Roman Empire, the leaders of the Tetrarchy declare Maxentius a public enemy and Licinius is proclaimed Augustus, while rival contender Constantine I is declared Caesar of Britain and Gaul.

* The Spanish provinces revolt from the control of Maxentius, acknowledging Constantine the Great as their Emperor.

* July 25 – The Arch of Constantine is completed near the Colosseum at Rome to commemorate Constantine's victory over Maxentius at the Milvian Bridge.