Big History: Season 1, Episode 17

1 - 17: The Big History of Everything

An epic 2-hour journey through time and space. This special pulls all that we know about science and history into one grand narrative of the universe and humanity, and uncovers the mysterious link between eight critical thresholds on the path from the Big Bang to modern civilization. And it peers into the future to see what life-changing thresholds are yet to come.