+Ogham is an early medieval [alphabet](/wiki/Alphabet) used to write the Old Irish language, distinguished by groups of notches or lines. These distinctive marks are carved along a central stem-line, most often found on ancient [stone](/wiki/Stone) pillars, representing sounds of the early Celtic tongue.
+## See also
+- [Celtic Language](/wiki/Celtic_Language)
+- [Old Irish](/wiki/Old_Irish)
+- [Runes](/wiki/Runes)
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