Ancient Sumerian text. this is the first known language. made on clay tablets with a reed called a stylus explains the dominant theme of triangles because the tip of the reed was triangular. The Sumerians are known for their influence in the worlds religions from creation stories to the story of Noah ark the Sumerians wrote it first. Also of interest are the stories of an extraterrestrial race called the Annunaki which is created for the rise of civilization, creation of man and genetic manipulation, and the destruction of ages told in many accounts by many cultures all over the world the classic flood story. look it up for yourself it is a fascinating subject.