Gilgamesh was the first and greatest ever superhero: a real king, yet so much stronger and braver than anybody else that they called him "one third man, two thirds god!"
He built the great walls around Uruk, with its great temple dedicated to Anu (god of the sky) and Ishtar (goddess of love and war). It stood for a thousand years, the wonder of the world. Gilgamesh travelled to the ends of the Earth met Utnapishtim (the man we call Noah), the only man to survive the great flood, and be granted immortality. Gilgamesh learned the secrets of life, yet his people lived in fear!