What is the OCR Roman period study about?

The Roman period study, the Julio-Claudian Emperors 31 BC to AD 68, is Section A of the Roman component. It covers the creation of the principate by Augustus and the reigns of Tiberius, Gaius (Caligula), Claudius and Nero, with the structural themes of the army, the Praetorian Guard, the succession and relations with the Senate. It is examined through short answers, a 20-mark essay and a 12-mark source-utility question.

What is the principate, and how did Augustus create it?

The principate is the system of disguised monarchy Augustus founded. In 27 BC he 'restored the Republic' while taking a large provincial command over the armies, and in 23 BC he swapped the consulship for tribunician power for life and a superior imperium. He ruled through traditional powers, the army, wealth and patronage while calling himself princeps, first among equals, ruling by auctoritas. The Res Gestae presents this self-image.

Why is the army so important in this period?

Because the real foundation of imperial power was the loyalty of the army, especially the Praetorian Guard. The Praetorians murdered Gaius and proclaimed Claudius in AD 41 with a donative, Sejanus's near-seizure showed the danger of the prefecture, and Nero fell in AD 68 when the armies and Guard abandoned him, revealing the 'secret of empire' that an emperor could be made outside Rome.

Which sources are used for the Julio-Claudians?

The main sources are Tacitus's Annals (the fullest and most analytical, but senatorial and hostile), Suetonius's Lives of the Caesars (biographical, anecdotal and scandal-loving), Cassius Dio (later, useful where Tacitus is lost), Velleius Paterculus (a loyalist on Augustus and Tiberius), the Res Gestae (Augustus's own propaganda), and Seneca. Evaluating their bias is central to the period study.

How should I revise the Julio-Claudian period study?

Build a clear narrative of each reign (Augustus to Nero) and master the structural themes (the principate, the army and Praetorians, the succession, relations with the Senate). Attach the key sources to each reign and learn their biases, especially Tacitus versus Suetonius. Practise the 20-mark essay by ranking causes (of the principate's success, of each emperor's fall) and the 12-mark question on evaluating sources such as the Res Gestae.

EnglandAncient History

OCR Ancient History Roman period study: the Julio-Claudian Emperors 31 BC to AD 68, a complete overview

A complete overview of the OCR A-Level Ancient History Roman period study, the Julio-Claudian Emperors 31 BC to AD 68. Explains the structure of Section A, ties together Augustus, Tiberius, Gaius, Claudius and Nero, the principate, the army and succession, and shows how to evaluate Tacitus, Suetonius, Dio and the Res Gestae.

Generated by Claude Opus 4.814 min readH407Updated 2026-06-02

Reviewed by: AI editorial process; not yet individually human-reviewed

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How Section A works
The five emperors
The structural themes
Evaluating the sources

The OCR Ancient History Roman period study, the Julio-Claudian Emperors 31 BC to AD 68, is Section A of the Roman component. It traces the system of one-man rule from its disguised creation by Augustus to its violent collapse under Nero, and it is told through some of the greatest and most biased of Roman historians. This overview ties together the dot-point pages and the source skills the section demands.

How Section A works

The period study is examined as Section A of the Roman paper (50 marks within the 98-mark paper), through short-answer questions, a 20-mark essay (chosen from two), and a 12-mark source-utility question assessing the value of one to four named ancient sources.

The five emperors

Augustus. The creator of the principate (the settlements of 27 BC and 23 BC, tribunician power, the Res Gestae), who disguised monarchy as the restored Republic.
Tiberius. The awkward successor whose reign soured through the treason trials and the rise and fall of Sejanus.
Gaius (Caligula). The popular accession that turned to autocracy, financial crisis and the tradition of madness, ending in assassination.
Claudius. The unexpected emperor made by the Praetorians, who ruled through freedmen and won prestige by conquering Britain in AD 43.
Nero. The guided start that declined through the murder of Agrippina, the fire of Rome, the persecution of the Christians, and the revolt that ended the dynasty in AD 68.

The structural themes

The principate. Disguised monarchy resting on permanent powers, the army, wealth and auctoritas.
The army and the Praetorian Guard. The true foundation of power, which made and unmade emperors.
Succession. No fixed rule, so each emperor improvised through adoption, marriage and grants of power, producing recurring crisis.

Evaluating the sources

Tacitus is the fullest and most analytical, but senatorial and hostile.
Suetonius is biographical, anecdotal and loves scandal.
The Res Gestae is Augustus's own propaganda.
Dio and Velleius supply later synthesis and loyalist perspective.

Sources & how we know this

OCR A Level Ancient History H407 specification — OCR (2017)