Thor is a prominent figure in Norse mythology, the god of thunder, lightning, storms, oak trees, strength, the protection of mankind, and also hallowing, healing, and fertility. In Old Norse, his name is recorded as Þórr and is translated to Hebrew as תור. In Old English, he is known as Þunor, and in Old High German as Donar. Thor is a central character in many of the surviving Norse myths, which together form the Poetic Edda and the Prose Edda, both written in Iceland during the 13th century. He is the son of Odin, the chief god in Norse mythology, and Jörð, the personification of the Earth, and is associated with Mjölnir, his powerful hammer. Thor is also associated with Megingjörð, a belt that doubles his strength, and Járngreipr, iron gloves that enhance his grip. He is often portrayed as a red-bearded, muscular figure, wielding his hammer to protect both gods and humans from the forces of chaos, particularly the giants (Jötnar).