Posidonius – Acclaimed as the greatest polymath of his age.

Chiomara – A Galatian noble woman and the wife of Orgiagon.

Battle of the Allia – Fought between the Senones and the Romans in 390 BCE.

Diviciacus – Druid from antiquity.

Aedui – Gallic people and Tribe of Diviciacus.

Diodorus Siculus – Greek historian.

Helvetii – A Gallic tribal confederation.

Orgetorix – Aristocrat among the Helvetii.

Battle of Magetobriga – Fought in 63 BC between rival tribes in Gaul.

Ariovistus – Leader of the Suebi.

Suebi – A large group of related Germanic peoples.

Suetonius – Roman historian.

Cassius Dio – Roman statesman, Greek origin.

Belgae – Large confederation of tribes living in northern Gaul.

Nervii – One of the most powerful Belgic tribes.

Ambiorix – Leader of a Belgic tribe of north-eastern Gaul.

Veneti – A seafaring Celtic people.

Dumnorix – A chieftain of the Aedui and brother to Diviciacus.

Arverni – A Celtic tribe.

Vercingetorix – A king and chieftain of the Arverni tribe.

Siege of Avaricum – Avaricum in the winter of 52 BC.

The Battle of Gergovia – The chief fortified town of the Arverni.

Noviodunum – Meaning “new fort”.

Oppidum – Large fortified Iron Age settlement.

Battle of Alesia – Military engagement in the Gallic Wars that took place in 52 BCE.