History's Mysteries / Season 1 ▦ Season guide History's Mysteries: Season 1 15 episodes Premiered Jan 4, 1998 Updated Jul 23, 2026 Spoiler-safe Advertisement Episodes S1·E1 The Death of Marilyn Monroe Jan 4, 1998 · 60 min S1·E2 Project Underworld:the military and the Mafia Jan 11, 1998 · 60 min S1·E3 Navajo Code Talkers · 60 min S1·E4 The Wright Brothers Controversy · 60 min S1·E5 Prophecies · 60 min S1·E6 Hell's Angels · 60 min S1·E7 Japan's Mysterious Pyramids · 60 min S1·E8 Ancient Aliens · 60 min S1·E9 Sodom & Gomorrah · 60 min S1·E10 Ghost Ships · 60 min S1·E11 Doomed Sisters of the Titanic · 60 min S1·E13 Chain Gangs · 60 min S1·E14 America's Most Secret Agency · 60 min S1·E15 Ancient Monster Hunters · 60 min S1·E16 Buried Secrets: Digging for DNA · 60 min