Going all the way back to the 3rd millennium BCE is the Sumerian King List, a listing of all Sumer kings, their respective dynasties, locations, and times in power. While this may not seem like too much of a mystery, it’s what is inscribed along with the list of kings that makes it so interesting.
There are mythological elements embedded within it. Along with a who’s-who of Sumerians in power, the King List also incorporates events such as the Great Flood and the tales of Gilgamesh, stories that are often referred to as simple fables. Theorists take this to mean that the Old Testament stories were true, or that the kings listed were actually gods or demi-gods.