Conflicts & Resolutions · Battle

Battle of the Allia

c. 390 BCE · 4th century BCE

The Battle of the Allia was fought around 390 BCE, or 387 BCE by Greek reckoning, near the River Allia north of Rome, where a Gallic army under Brennus routed the Romans. The Gauls then sacked Rome, and the day of the defeat, 18 July, was long regarded as unlucky. The disaster prompted the building of stronger defences, including the Servian Wall.

Mentioned in 1 profile

Roman RepublicFoundation

Mentioned in 2 state histories

SenonesSenones

See also

Cite this entry
APA
The Epoch Institute. (2026). Battle of the Allia. In The Epoch Institute Encyclopedia. https://the-epoch-institute.org/encyclopedia/battle-of-the-allia
MLA
“Battle of the Allia.” The Epoch Institute Encyclopedia, The Epoch Institute, 2026, https://the-epoch-institute.org/encyclopedia/battle-of-the-allia. Accessed .
Chicago
The Epoch Institute. “Battle of the Allia.” The Epoch Institute Encyclopedia. 2026. https://the-epoch-institute.org/encyclopedia/battle-of-the-allia.
Harvard
The Epoch Institute (2026) ‘Battle of the Allia’, The Epoch Institute Encyclopedia. Available at: https://the-epoch-institute.org/encyclopedia/battle-of-the-allia (Accessed: ).

Last reviewed October 2026Random entry ↻