Celtic and Pictish - early Celts and their priests, the Druids, had their own form of alphabet known as “Ogam Bethluisnion”, which was an extremely simple alphabet used more for carving into wood and stone, than for general writing, while Pictish artwork was later adopted by the Celts, especially throughout Ireland (???)
Rowan (Jan. 21 - Feb. 17) With the Rowan tree comes excellent taste. Your ogham is Luis, which represents strength in the areas of insight and discernment. The Celts linked the crane and the green dragon to the energy of the Rowan tree. Your color is gray and your gemstone is peridot.