- and date from the Neolithic period or earlier. Remains from the Bronze Age period are far more widespread. Early Irish tribes formed the Kingdom of Uí Cheinnsealaig, an area that was slightly larger than the current County Wexford.

County Wexford was one of the earliest areas of Ireland to be Christianised, in the early 5th century. Later, from 819 onwards, the Vikings invaded and plundered many