History's Secrets
Mysterious events, compelling figures, and great unanswered questions from the past are explored in this National Geographic series.
Episodes
Since the detonation of the first atomic bomb, nuclear weapons have spread from major nations to small countries and terrorist groups through espionage, double-dealing and covert plots.
There's more to Abraham Lincoln than meets the eye. Far from a simple lawyer who freed the slaves, Lincoln is actually a shrewd manipulator. Explore his hidden political and strategic genius.
