Angels and Demons Throughout History

This question has been posed many times and is often debated among scientists and theologians when it cause to the UFO phenomenon.

Which ever the case may be whether these entities are angels and demons or reptilian visitors, they are very real.

There have been documented in various forms by ancient cultures for thousands or years. Some believe that entities that call themselves aliens or E.Ts are in fact angels and demons, more specifically demons that are deceiving us.

This post is not about choosing a side in this debate, but more about taking a look at these entities and the roles they played throughout history.

Demons, monsters, and different Gods have been both the objects of worship and fear for centuries. But why? Where did these myths arise and what exactly were these entities of the ancient world.