In 1849, Austin Henry Layard discovered 22,000 clay tablets in the Ancient Sumerian city of Nineveh, Iraq. The tablets contain cuneiform script, created by the Sumerians 6,000 years ago. The Ancient drawings include Neptune,Uranus & Pluto - planets not known by modern peoples until 1846, 1781, & 1930 respectively & describe the earth rotating around the sun. . .