Hiberno-Roman relations

Rome never annexed Hibernia (the Latin name for Ireland) into the Roman Empire, but did exert influence on the island, although only a small amount of evidence of this has survived.

Prosper says in his Contra Collatorem that by this act Celestine "made the barbarian island Christian", although it is clear the Christianisation of Ireland was a longer and more gradual process.

Apart from the introduction of a new religion, the cultural influence from Rome can be seen even in the clothes (and glades) of high-ranking people inside Celtic tribes of the 3rd and 4th centuries.

[citation needed] In fact, several Ogham stones in Wales are bilingual, containing both Old Irish and Latin-influenced Brythonic (the ancestor of contemporary Welsh) inscriptions.

[7] The most commonly advanced interpretation is that any military presence was to provide security for traders, possibly in the form of an annual market where Romano-British and Irish met to trade.

[12] It is possible that the Romans may have given support to an Irish chieftain to regain his throne, in the interests of having a friendly neighbour who could restrain raiding from Ireland.

The Romano-British Saint Patrick promoted the creation of monasteries in Hibernia and the older druid tradition collapsed, in the face of the new religion he brought.

[15][16] However, the concept of a period in which knowledge was lost and regression occurred in post-Roman Europe during the Early Middle Ages is no longer accepted by historians.

A map of Hibernia as described by Ptolemy .
Tacitus wrote that the Roman general Agricola in 82 crossed the sea (of Ireland?) from western Britain and conquered "tribes unknown" to Romans
The Romano-Briton Saint Patrick , Patron Saint of Ireland