Possibly the swiftest route to your roots.
Irish genealogy website directory.
www.mayo-ireland.ie/Mayo/History/FullHist.htm
Description:
County Mayo has a rich archaeological heritage dating from prehistoric times to the present. (Achaeology is the interpretation of our past from the study of buildings and objects made by human beings. We are dependent on archaeology alone in any attempt to study the prehistoric period and thereafter to complement what is recorded in written sources).