Denarius in the context of "Augustus"

A democracy is a political system, or a system of decision-making within an institution, organization, or state, in which members have a share of power. Modern democracies are characterized by two capabilities of their citizens that differentiate them fundamentally from earlier forms of government: to intervene in society and have their sovereign (e.g., their representatives) held accountable to the international laws of other governments of their kind. Democratic government is commonly juxtaposed with oligarchic and monarchic systems, which are ruled by a minority and a sole monarch respectively.

Democracy is generally associated with the efforts of the ancient Greeks, whom 18th-century intellectuals such as Montesquieu considered the founders of Western civilization. These individuals attempted to leverage these early democratic experiments into a new template for post-monarchical political organization. The extent to which these 18th-century democratic revivalists succeeded in turning the democratic ideals of the ancient Greeks into the dominant political institution of the next 300 years is hardly debatable, even if the moral justifications they often employed might be. Nevertheless, the critical historical juncture catalyzed by the resurrection of democratic ideals and institutions fundamentally transformed the ensuing centuries and has dominated the international landscape since the dismantling of the final vestige of the British Empire following the end of the Second World War.

Lucius Cassius Longinus was the brother of Gaius Cassius Longinus, a leading instigator in the assassination of Julius Caesar.

Around 52 BC, Lucius Longinus was triumvir monetalis in 63 BC. He minted denarii referring to the famous trial of the vestal virgins of 114–113 BC, which was prosecuted by his ancestor Lucius Cassius Longinus Ravilla. In 54 BC, he was the junior co-prosecutor (subscriptor) to Marcus Iuventius Laterensis [la] in the trial of Gnaeus Plancius [la] for electoral malpractice (ambitus). Plancius was defenced by Cicero, who accused Longinus of incompetence, immorality and inexperience in his defence speech, the Pro Plancio.

Marcus Aurelius Antoninus (born Lucius Septimius Bassianus, 4 April 188 – 8 April 217), better known by his nickname Caracalla (/ˌkærəˈkælə/; Latin: [karaˈkalːa]), was Roman emperor from 198 to 217 AD, first serving as nominal co-emperor under his father and then ruling alone after 211 AD. He was a member of the Severan dynasty, the elder son of Emperor Septimius Severus and Empress Julia Domna. Severus proclaimed Caracalla co-ruler in 198, doing the same with his other son Geta in 209. The two brothers briefly shared power after their father's death in 211, but Caracalla soon had Geta murdered by the Praetorian Guard and became sole ruler of the Roman Empire. Julia Domna had a significant share in governance, since Caracalla found administration to be mundane. His reign featured domestic instability and external invasions by the Germanic peoples.

Caracalla issued the Antonine Constitution (Latin: Constitutio Antoniniana), also known as the Edict of Caracalla, which granted Roman citizenship to all free men throughout the Roman Empire. The edict gave all the enfranchised men Caracalla's adopted praenomen and nomen: "Marcus Aurelius". Other landmarks of his reign were the construction of the Baths of Caracalla, the second-largest bathing complex in the history of Rome, the introduction of a new Roman currency named the antoninianus, a sort of double denarius, and the massacres he ordered, both in Rome and elsewhere in the empire. In 216, Caracalla began a campaign against the Parthian Empire. He did not see this campaign through to completion due to his assassination by a disaffected soldier in 217. Macrinus succeeded him as emperor three days later.

Titus Aelius Hadrianus Antoninus Pius (/ˌæntəˈnaɪnəs ˈpaɪəs/; Latin: [antoːˈniːnus ˈpius]; 19 September 86 – 7 March 161) was Roman emperor from AD 138 to 161. He was the fourth of the Five Good Emperors from the Nerva–Antonine dynasty.

Born into a senatorial family, Antoninus held various offices during the reign of Emperor Hadrian. He married Hadrian's niece Faustina, and Hadrian adopted him as his son and successor shortly before his death. Antoninus acquired the cognomen Pius after his accession to the throne, either because he compelled the Senate to deify his adoptive father, or because he had saved senators sentenced to death by Hadrian in his later years. His reign is notable for the peaceful state of the Empire, with no major revolts or military incursions during this time. A successful military campaign in southern Scotland early in his reign resulted in the construction of the Antonine Wall.

Silver coins are one of the oldest mass-produced form of coinage. Silver has been used as a coinage metal since the times of the Greeks; their silver drachmas were popular trade coins. The ancient Persians used silver coins between 612–330 BC. Before 1797, British pennies were made of silver.

As with all collectible coins, many factors determine the value of a silver coin, such as its rarity, demand, condition and the number originally minted. Ancient silver coins coveted by collectors include the Denarius and Miliarense, while more recent collectible silver coins include the Morgan Dollar and the Spanish Milled Dollar.

The antoninianus or pre-reform radiate was a coin used during the Roman Empire thought to have been valued at 2 denarii. It was initially silver, but was slowly debased to bronze with a minimal silver content. The coin was introduced by Caracalla in early 215 AD. It was silver, similar to the denarius, except that it was slightly larger and featured the emperor wearing a radiate crown, indicating it was a double denomination. Antoniniani depicting women (usually the emperor's wife) featured the bust resting upon a crescent moon.

Even at its introduction, the silver content of the antoninianus was only equal to 1.5 denarii. This created inflation: people rapidly hoarded the denarii (Gresham's law), while both buyers and sellers recognized the new coin had a lower intrinsic value and elevated their prices to compensate. Silver bullion supplies began running short because the Roman Empire was no longer conquering new territory, the Iberian silver mines had been exhausted, and a series of soldier emperors and usurpers needed coin to pay their troops and buy their loyalty. Each new issue of the antoninianus thus had less silver in it than the last, and thus contributed to ever-increasing inflation.

The dinar (/dɪˈnɑːr/, /ˈdiːnɑː(r)/) is the name of the principal currency unit in several countries near the Mediterranean Sea, with a more widespread historical use. The English word "dinar" is the transliteration of the Arabic دينار (dīnār), which was borrowed via the Syriac dīnarā from the Latin dēnārius.

The modern gold dinar is a projected bullion gold coin, and as of 2019 is not issued as an official currency by any state.

Aemilia, Licinia and Marcia were Roman vestal Virgins, who were prosecuted for having broken the vow of chastity in two famous trials between 115 and 113 BC. The first trial was conducted by the Pontifex Maximus Metellus Delmaticus, who sentenced Aemilia to death in 114 BC. The decision to spare the other two vestals triggered outrage and led to a follow-up trial headed by Cassius Longinus Ravilla. Licinia and Marcia were subsequently put to death as well. The trials were heavily influenced by the political background and network of the participants.

Roman currency for most of Roman history consisted of gold, silver, bronze, orichalcum (brass), and copper coinage. From its introduction during the Republic, in the third century BC, through Imperial times, Roman currency saw many changes in form, denomination, and composition. A feature was the inflationary debasement and replacement of coins over the centuries. Notable examples of this followed the reforms of Diocletian. This trend continued with Byzantine currency.

Due to the economic power and longevity of the Roman state, Roman currency was widely used throughout western Eurasia and northern Africa from classical times into the Middle Ages. It served as a model for the currencies of the Muslim caliphates and the European states during the Middle Ages and the Modern Era. Roman currency names survive today in many countries via the Carolingian monetary system, such as the dinar (from the denarius coin), the British pound (a translation of the Roman libra, a unit of weight), the peso (also a translation of libra), and the words for the general concept of money in the Iberian Romance languages (e.g. Spanish dinero and Portuguese dinheiro).