No one can say what keen-eyed observer in the dawn of history first picked out Saturn as a planet, or heavenly wanderer, from the dizzying background of myriad fixed stars. Probably the first stargazers to leave a record of Saturn's appearance in different parts of the night sky were the Sumerians.
They lived in southern Mesopotamia about 5,000 years ago and, according to George Michanowsky, a scholar of cuneiform writing, they called the planet Sag-Ush, regarding it as a male fertility symbol. The Babylonians, who eventually ruled over that part of Mesopotamia, watched the heavens from the tops of their ziggurats. To...