Constantine I, also known as Constantine the Great, was a Roman emperor from AD 306 to 337 and the first Roman emperor to convert to Christianity. He played a pivotal role in elevating the status of Christianity in Rome, decriminalizing Christian practice and ceasing Christian persecution in a period referred to as the Constantinian shift. This initiated the cessation of the established ancient Roman religion. Constantine is also the originator of the religiopolitical ideology known as Constantinianism, which epitomizes the unity of church and state, as opposed to separation of church and state. He founded the city of Constantinople and made it the capital of the Empire, which remained so for over a millennium.
The 310s decade ran from January 1, 310, to December 31, 319.
Year 312 (CCCXII) was a leap year starting on Tuesday of the Julian calendar. In the Roman Empire, it was known as the Year of the Consulship of Constantinus and Licinianus. The denomination 312 for this year has been used since the early medieval period, when the Anno Domini calendar era became the prevalent method in Europe for naming years.
The Battle of the Milvian Bridge took place between the Roman Emperors Constantine I and Maxentius on 28 October 312 AD. It takes its name from the Milvian Bridge, an important route over the Tiber. Constantine won the battle and started on the path that led him to end the Tetrarchy and become the sole ruler of the Roman Empire. Maxentius drowned in the Tiber during the battle; his body was later taken from the river and decapitated, and his head was paraded through the streets of Rome on the day following the battle before being taken to Africa.
Galerius Valerius Maximianus was Roman emperor from 305 to 311. During his reign he campaigned, aided by Diocletian, against the Sasanian Empire, sacking their capital Ctesiphon in 299. He also campaigned across the Danube against the Carpi, defeating them in 297 and 300. Although he was a staunch opponent of Christianity, Galerius ended the Diocletianic Persecution when he issued the Edict of Toleration in Serdica (Sofia) in 311.
Valerius Licinianus Licinius was Roman emperor from 308 to 324. For most of his reign, he was the colleague and rival of Constantine I, with whom he co-authored the Edict of Milan that granted official toleration to Christians in the Roman Empire. He was finally defeated at the Battle of Chrysopolis, and was later executed on the orders of Constantine I.
Marcus Aurelius Valerius Maxentius was a Roman emperor from 306 until his death in 312. Despite ruling in Italy and North Africa, and having the recognition of the Senate in Rome, he was not recognized as a legitimate emperor by his fellow emperors.
The Battle of Arcole or Battle of Arcola was fought between French and Austrian forces 25 kilometres (16 mi) southeast of Verona during the War of the First Coalition, a part of the French Revolutionary Wars. The battle saw a bold maneuver by Napoleon Bonaparte's French Army of Italy to outflank the Austrian army led by József Alvinczi and cut off its line of retreat. The French victory proved to be a highly significant event during the third Austrian attempt to lift the siege of Mantua. Alvinczi planned to execute a two-pronged offensive against Bonaparte's army. The Austrian commander ordered Paul Davidovich to advance south along the Adige River valley with one corps while Alvinczi led the main army in an advance from the east. The Austrians hoped to raise the siege of Mantua where Dagobert Sigmund von Wurmser was trapped with a large garrison. If the two Austrian columns linked up and if Wurmser's troops were released, French prospects were grim.
The Battle of Turin was fought in 312 between Roman emperor Constantine the Great and the troops of his rival Maxentius. Constantine won the battle, showing an early example of the tactical skill which was to characterise his later military career. The campaign ended with his more famous victory at the Milvian Bridge immediately outside of Rome.
The Battle of Adrianople was fought in Thrace on July 3, 324, during a Roman civil war, the second to be waged between the two emperors Constantine I and Licinius. Licinius was soundly defeated and his army suffered heavy casualties. Constantine built up military momentum, winning further battles on land and sea, eventually leading to the final defeat of Licinius at Chrysopolis.
The Battle of Tzirallum was part of the civil wars of the Tetrarchy fought on 30 April 313 between the Roman armies of emperors Licinius and Maximinus. The battle location was on the "Campus Serenus" at Tzirallum, identified as the modern-day town of Çorlu, in Tekirdağ Province, in the Turkish region of Eastern Thrace. Sources put the battle between 18 and 36 Roman miles from Heraclea Perinthus, the modern-day town of Marmara Ereğlisi.
The Battle of the Hellespont, consisting of two separate naval clashes, was fought in 324 between a Constantinian fleet, led by the eldest son of Constantine I, Crispus; and a larger fleet under Licinius' admiral, Abantus. Despite being outnumbered, Crispus won a very complete victory.
The Battle of Cibalae was fought in 316 between the two Roman emperors Constantine I and Licinius. The site of the battle, near the town of Cibalae in the Roman province of Pannonia Secunda, was approximately 350 kilometers within the territory of Licinius. Constantine won a resounding victory, despite being outnumbered.
Events in the history of Verona, in Italy.
The First Italian War of Independence, part of the Italian Unification (Risorgimento), was fought by the Kingdom of Sardinia (Piedmont) and Italian volunteers against the Austrian Empire and other conservative states from 23 March 1848 to 22 August 1849 in the Italian Peninsula.
The Battle of Goito was fought between the Piedmontese and the Austrian army on 30 May 1848, in the course of the First Italian War of Independence. The Piedmontese army won the battle, as the Austrians were unable to break through to relieve the siege of Peschiera and prevent its surrender which happened on the day before the battle.
Ruricius Pompeianus was Praetorian prefect and Commander of cavalry and infantry under Maxentius, Western Roman Emperor. While guarding the Adige and Po Rivers with the ample and well-directed forces of the province of Venetia, Pompeianus was killed by Constantine I's troops during the desperately fought Battle of Verona (312).
The civil wars of the Tetrarchy were a series of conflicts between the co-emperors of the Roman Empire, starting from 306 AD with the usurpation of Maxentius and the defeat of Severus to the defeat of Licinius at the hands of Constantine I in 324 AD.
The Battle of Brescia was a confrontation that took place during the summer of 312, between the Roman emperors Constantine the Great and Maxentius in the town of Brescia, in northern Italy. Maxentius declared war on Constantine on the grounds that he wanted to avenge the death of his father Maximian, who had committed suicide after being defeated by him. Constantine would respond with a massive invasion of Italy.
The siege of Segusio or siege of Susa was the first clash of the civil war between the Roman emperors Constantine the Great and Maxentius in the spring of 312. In that year, Maxentius had declared war on Constantine, claiming to intend to avenge the death of his father Maximian, who had committed suicide after being defeated by him. Constantine would respond with an invasion of northern Italy.
