Denarius

The death of Septimius Severus. February 4, 211.

By 210, Septimius Severus‘ campaigning had made significant gains in Britain, despite Caledonian guerrilla tactics and heavy Roman casualties. The Caledonians sued for peace, which Severus granted on condition they gave up control of the Central Lowlands. The Caledonians, short on supplies and feeling their position was becoming desperate, revolted later that year along with the Maeatae. Severus prepared for another protracted campaign within Caledonia. He was now intent on exterminating the Caledonians, telling his soldiers: “Let no-one escape sheer destruction, no-one our hands, not even the babe in the womb of the mother, if it be male; let it nevertheless not escape sheer destruction”. Severus’ campaign was cut short when he fell fatally ill. He withdrew to Eboracum a...

Crossing the Rubicon. January 10, 49 BC.

During the Roman Republic, the river Rubicon marked the boundary between the Roman province of Cisalpine Gaul to the north-west and Italy proper (controlled directly by Rome and its allies) to the south. Exercising imperium when forbidden by the law was a capital offence. Furthermore, obeying the commands of a general who did not legally possess imperium was a capital offence. If a general entered Italy whilst exercising command of an army, both the general and his soldiers became outlaws and were automatically condemned to death. Generals were thus obliged to disband their armies before entering Italy. In 49 BC, perhaps on January 10, Julius Caesar led a single legion, south over the Rubicon from Cisalpine Gaul to Italy to make his way to Rome. In doing so, he deliberately broke the law o...

The Julian Calendar. January 1, 45 BC.

  In the mid-1st century BCE Julius Caesar invited astronomer Sosigenes of Alexandria to advise him about the reform of the calendar, and Sosigenes decided that the only practical step was to abandon the lunar calendar altogether. Months must be arranged on a seasonal basis, and a tropical (solar) year used, as in the Egyptian calendar, but with its length taken as 365 1/4 days. To remove the immense discrepancy between calendar date and equinox, it was decided that the year known in modern times as 46 BCE should have two intercalations. This insertion amounted to an addition of 67 days, making a year of no less than 445 days and causing the beginning of March 45 BCE in the Roman republican calendar to fall on what is still called January 1 of the Julian calendar. Previous errors havi...

End of the Siege and Battle of Alesia. 5 October, 52 BC.

The Siege and Battle of Alesia meant the end of the Gallic Wars, and took place from September to October 52 BC. It befell around the Gallic fortified settlement of Alesia, “capital” of the Mandubii tribe. It confronted the Roman army of Julius Caesar against an alliance of Gallic tribes, united under the leadership of Vercingetorix of the Averni. In history, it is considered one of Caesar´s most important military victories, as well as a classic example of siege warfare. This battle marked the end of the Gallic independence of France and Belgium. The day after the battle, Caesar ordered the Gauls to surrender their weapons and deliver their chieftains. The chieftains were brought before him and Vercingetorix was surrendered. For Caesar, Alesia was an enormous personal success, both milita...

Roman Denominations

The Roman Empire came to be from the ashes of the Roman Republic and Imperatorial periods, and once established by Augustus in 27BC, the foundation for the expanded monetary system began and would continue until its overhaul by Diocletian. The base unit of the empire was the copper as, and the system was designed mainly in fractions or multiples of four. The largest regular base-metal coin was the sestertius, valued at four asses, and was made of orichalcum or bronze. The denarius was the silver workhorse and valued at 16 asses. Higher up the chart we find the gold aureus, valued at 25 denarii. In-between and below these denominations we find the quinarius (12-1/2 denarii for gold version and eight asses for the silver module), double-sestertius (eight asses), dupondius (two asses), semis ...

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