The Sumerians left a warning about the day the Anunnaki will return to Earth. Ancient clay tablets carved thousands of years ago reportedly describe these powerful beings descending from the sky, not as gods, but as visitors with advanced technology.

In 1849, an explorer named Austin Henry Layard excavated ruins in northern Iraq and uncovered a library that had been buried for about 2,500 years. The collection belonged to an ancient Assyrian king, Ashurbanipal, and contained tens of thousands of clay tablets written in several languages, including Sumerian, a language that had already been ancient by the king’s lifetime. It took linguists more…