# Legio IX establishes a fortress at York (71)

URL: https://english-history.com/timeline/71-legio-ix-establishes-a-fortress-at-york

The Romans founded a legionary base at Eboracum, modern York. Within the broader Roman Britain period, conquest, provincial administration, urbanization, frontier warfare and the gradual weakening of imperial rule reshaped the island. This event is placed at AD 71 in the chronology so it can be read alongside the political, military, social and cultural changes around it. York became a major military and administrative centre in northern Britain.

## Why it matters
York became a major military and administrative centre in northern Britain.

Ruler at the time: [Roman Britain](https://english-history.com/rulers/roman-britain)

## Sources
- [Wikipedia topic lookup — Legio IX establishes a fortress at York](https://en.wikipedia.org/wiki/Special:Search?search=Legio+IX+establishes+a+fortress+at+York&go=Go)
- [Encyclopaedia Britannica topic lookup — Legio IX establishes a fortress at York](https://www.britannica.com/search?query=Legio+IX+establishes+a+fortress+at+York)
- [Wikipedia — Timeline of British history](https://en.wikipedia.org/wiki/Timeline_of_British_history_%28before_1000%29)
- [Encyclopaedia Britannica — Roman Britain topic search](https://www.britannica.com/search?query=Roman%20Britain)