A stone (usually erect) with Ogham script carved on it. They are usually monuments dating from the Iron Age with the inscription being a dedication to somebody, probably a memorial. They often simply state a persons name and pedigree in the form of Fred Son Of Roger Son Of Herbert.
Quite often these are re-used Bronze Age (or earlier) standing stones. As they are often associated with ecclesiastical sites and that the writing seems to be dated from the period starting around 300 CE, many think that it was in fact brought to Ireland by the first Christian missionaries, while other still refer to it as the writing of Druids.
