The ancient script of Ogham, sometimes known now as the 'Celtic Tree Alphabet,' originally contained 20 letters grouped into four groups of five. Five more letters were later added creating a fifth group. Each of these groups was named after its first letter.
"Its twenty letters, called feda (= ‘trees’), group into four aicme (= ‘family, tribe’) of five letters each. Each letter is simply a cluster of one to five straight lines, scratched along the (usually) vertical edge of a stone.
"The first family (B – L – V/F – S – N) has lines drawn to the right of the edge-line (so one line is B, two lines is L, five lines is N, etc.).
"The second family (H – D – T – C – Q) has lines drawn to the left.
"The third (M – G – NG – ST – R) draws its lines diagonally across both sides of the edge
"And the fourth family (the vowels A – O – U – E – I) is drawn either as short marks on the edge itself, or straight across both sides of the edge."
As far as what Ogham was used for, Dr. Quinn explained: "All we know directly for certain is its use in writing personal names, in possessor form (So-and-So’s…), on the edges of standing stones and the like, as memorial (and possibly as territory/boundary) markers.
"But references in Old Irish (and later) literature also have
characters writing Ogham on sticks to send messages, to record
information, and to do magic."...<<<Read More>>>....