Ancient practices for a modern world. Ogham & the Celtic Tree Calendar. The ancient Celts didn’t have a written language, but they had a mysterious set of symbols known as the Ogham, pronounced 'Oh-am'. The exact historical origin of the alphabet has been the source of arguments for many years between modern pagans, scholars and authors. The Celtic alphabet of Ogham is an undisputed ancient written form in Ireland from around the 4-10th Century CE found on giant stone monumen
