In Turkish, trees were defined as “lgac” in Orhun Inscriptions, the first written records of our history, then as “Yigac” in Diwan Lughat al-Turk, the source work of Turkish language, and eventually transformed into “Agac” (Tree) to the present, and were deemed as a witness to our centuries-long civilization journey. “Agac” means “to ascend from ground to skies”. In other words, it means facing all kinds of hardships, surviving with the support and nourishment of earth, and rising to the skies a bit more every day. Because of this meaning, our trees have become one of the most valuable natural beings in our tradition. They have prevented pollution and erosion, regulated the water regime of their region, and took a vital role in preservation of other living beings.