This stone is part of a set of Ogham Stones which can be found in Charleville, County Cork. The Ogham script, an alphabet of 20 letters, is an ancient Celtic script. The letters are between one and five notches, placed horizantally on either side, diagonally across or at an angle of a corner of an upright stone.It is read from bottom to top, it is also believed that the 20 letters are also the names of 20 trees sacred to the druids. The name Ohgam is inspired by Ogma, the ancient God of eloquence.