Genre: Documentary, History, Science, Technology
Premise: Historians reveal and discuss evidence of centuries-old theories and prototypes for many contemporary procedures and technologies, like brain surgery and computers.
S06, E06 (First Aired: Dec. 18, 2009)
A secret manual explains how the Vietnamese defeated the United States in the 20th century and the Mongols 700 years earlier; King Mithridates; the invention of booby-traps and letter bombs; Spartacus revolts against the Roman Empire.
S05, E04 (First Aired: Nov. 13, 2008)
Revealing the terrifying truth behind torture; ancient inventors go to great lengths to develop precision devices to exact pain; the rack; burning at the stake; Vlad the Impaler.