The Deification

Two years after the daggers, the Senate declared the murdered dictator a god. The story of Divus Julius — comet, decree, and political theology.

The honors begin before death

Even before the Ides, Caesar accumulated quasi-divine honors: his statue carried among the gods in processions, a temple decreed to his Clementia, his birthday made a public festival. Whether he sought worship or simply accepted flattery, the trajectory was clear — and it fed the conspiracy’s conviction that he aimed at kingship.

The comet of 44 BC

At the funeral games held by Octavian in July 44 BC, a bright comet appeared for seven days. Popular interpretation: Caesar’s soul ascending to heaven. Augustus later stamped the comet (sidus Iulium) on coins, and Virgil wove it into the Aeneid. The comet is astronomically plausible (possibly Halley’s return is misdated for this; the identification is debated — the fact of a widely-reported celestial event in July 44 BC is what matters politically).

The decree (42 BC)

On 1 January 42 BC, the Second Triumvirate (Octavian, Antony, Lepidus) had the Senate formally deify Caesar as Divus Julius — the first Roman to be officially made a god by Senate decree. A temple was vowed in the Forum, on the spot of his cremation: the Temple of Divus Julius, completed by Augustus. Mark Antony became its first priest (flamen).

What “god” meant

Roman deification was not a claim about metaphysics — it was the Republic’s highest honor, voted like a triumph. But it had teeth:

• Octavian became Divi filius — “son of the deified.” A 19-year-old with no army became the son of a god, and it worked: the slogan is on his coins for decades.
• The cult was public and permanent — games, priests, a temple in the Forum’s east end, whose altar (the putative cremation spot) still draws flowers today.
• The precedent — every “good” emperor after him was deified in turn; the imperial cult starts here.

The politics

Deification served the living, not the dead. For Octavian it was legitimacy; for Antony, leverage; for the Senate, surrender dressed as honor. The god in the Forum was also a warning: this is what happens to men who cross the men who killed him — they get avenged, then worshipped, then used.

Source notes

• Suetonius, Divus Julius 88 (the comet and deification); Dio Cassius 45.7, 47.18–19; Appian, Civil Wars 2.148, 3.94 (2026-09-26).
• Formal decree 1 January 42 BC: the standard dating; temple completed under Augustus.
• Sidus Iulium coinage: standard numismatic evidence (see the denarius image on Home).
• Comet identification debate: see methodology.md — the political fact is secure, the astronomy is not.