Constantine the Great was proclaimed emperor in York, England in 306 A.D. after his father's death by the soldiers. Constantine was the first Christian Roman emperor who reigned from 306 to 337 A.D.
As the story goes, the praetorian guard found Claudius hiding behind a drape and recognizing him as a member of the imperial family, took him to the praetorian camp where he was proclaimed emperor. It is assumed by many historians that a healthy bribe aided in the selection of Claudius.
When the election for president was held, Louis Napoleon, the nephew of Napoleon Bonaparte, won. However, he had proclaimed himself Emperor Napoleon III. This ended the Second Republic.
Caesar Flavius Valerius Aurelius Constantinus Augustus(he has a long name), the first Christian Emperor of Rome, brought relief to Christians by reversing the persecutions of his predecessor, Diocletian, and issued (with his co-emperor Licinius) the Edict of Milan in 313, which proclaimed religious tolerance throughout the empire.
Self-appointed emperors in the west were: usurpers who were proclaimed by their legions and came into conflict with the actual emperor; Petronius Maximus after he was involved in the assassination of Valentinan III; Avitus, who was supported militarily by the Visigoths. Odoacer did not proclaim himself emperor. After deposing Romulus Augustus he declared that Rome did not need an emperor, claimed that Romulus Augustus had given him governance of Italy and only asked for patrician status. Zeno, the emperor of the east, recognised Odoacer as governor of Italy on his behalf, provided that he recognised Julius Nepos (who had been deposed by Romulus Augustus' father) as emperor of the west. Jiulius Nepos was murdered by his own military leaders four years later.
It was crisis of political instability. There were conspiracies against emperor Commodus, who was described as a coward and more interested in sport than politics, followed by struggles between five men who wanted to usurp the title of emperor. The crisis saw the end of the Nervan-Antonine dynasty and the beginning of the Severan dynasty. The establishment of the new dynasty ended this period of political instability. On the death Of Marcus Aurelius in 180, his son Commodus succeeded him. His sister Lucilla arranged a conspiracy against him. The assassination was bungled. Commodus' treasurer was murdered in a second conspiracy. There was unrest in Gaul and Germany caused by army deserters and an army revolt in Brittany. A plot by one of the deserters to assassinate Commodus was betrayed. Another plot was uncovered and foiled in the same year. Cleander, the new treasurer, deposed the praetorian prefect (the commander of the praetorian guard, the bodyguards of the emperor) and sold public offices to strengthen his political position with the intent of becoming more powerful than the emperor. However, he was executed following a riot against him. After this, Commodus decided to take charge of his government, but he was murdered in the following year. This was followed by the year of the five emperors, where five usurpers claimed the title of emperor. Pertinax was proclaimed emperor by the praetorian guards, but was murdered by them, apparently because he gave them only half of the pay off for making him emperor. Then Didius Julianus outbid a rival in paying off the soldiers and was proclaimed emperor. A demonstration broke out and people called for Prescennius Niger, governor of Syria, to become emperor. He was proclaimed emperor by the eastern legions. However, Septimius Severus marched on Rome and took over. He was challenged by Clodius Albinus who was proclaimed emperor by the legions of Britannia and Hispania. He crossed into Gaul with his troop and defeated Septimius Severus' general in Gaul. He established his headquarters in Lyon, but was defeated there in a large battle by Septimius Severus, who then managed to consolidate his power and start a new dynasty.
I think Constantine. You'll have to check tho!
Emperor Constantine proclaimed tolerance of Christianity.
he age of a Roman emperor depended on how old he was when he was proclaimed emperor
The Pope placed a crown on his head and proclaimed him "Emperor of the Romans".
Magnentius was proclaimed emperor upon the death of Constans, but his brother, Constantius II was also emperor in the East
me and it was yesterday
Napoleon recognized the independence of HAITI in 1804.
Louis-Napoléon Bonaparte, Napoléon III
Converted his kingdom to Christianity.
Nerva was proclaimed emperor by the senate on the day of the assassination of the emperor Domitian by court officials. He was 65 and childless and had spent much of his career out of public light.
Claudius ruled after Caligula. Caligula was murdered by the imperial guard (the Praetorian Guard) who then proclaimed Claudius as emperor.
Diocletian was proclaimed emperor in 284 and abdicated in 305. Therefore, his reign lasted 21 years.