Ancient astronaut theorists uncover Mesopotamian inscriptions that provide evidence of the Anunnaki existence thousands of years ago. See more in this clip from "Aliens and Lost Civilizations." Watch all new episodes of Ancient Aliens, Fridays at 8/7c, and next day on The HISTORY Channel ...

The Sumerians in ancient Mesopotamia achieved over one hundred "firsts" for human civilization. Advances in writing, agriculture, science, mathematics, medicine, and astronomy. See more in Season 6, Episode 3, "The Anunnaki Connection." Watch all new episodes of Ancient Aliens, Fridays at ...

Written language, the hallmark of human civilization, didn't just suddenly appear one day. Thousands of years before the first fully developed writing systems, our ancestors scrawled geometric signs across the walls of the caves they sheltered in. Paleoanthropologist and rock art researcher ...

Subscribe now for more! http://bit.ly/1KyA9sV Ross King meets former US President Bill Clinton and award-winning author James Patterson as they release their new book, The President’s Daughter. They reveal who the book is based on and Clinton explains how close it was to his own presidency and ...

Ben discuses the UFO highway located at the 37th Parallel, and the strange phenomenon of cattle mutilations. Ben Mezrich is the author of 18 books including Bringing Down The House that was made into the movie 21, and Accidental Billionaires that was made into the movie The Social Network. ...