Well, due to the Sumerians passing on a lot of their knowledge to other cultures and a lot of that not being exposed nearly as much as they should I think this is a pretty interesting fact.

The Orion and Taurus constellations are much older than what we are let to believe, since they originated with the Sumerians. Gilgamesh and his friend Enkidu end up fighting the bull of heaven in the epic in order to protect the people of Uruk from the wrath of the gods and manage to slay the creature.