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Unexplained History

Unexplained History

Tom McKenzie 69 Episodes Oct 13, 2026

Unexplained History delivers unexplained events analysis and deep dives into the history of the unexplained. Join host Tom McKenzie weekly as we uncover the secrets behind history’s greatest cold cases and cover-ups. If you’re fascinated by true crime, ancient mysteries, paranormal activity, and government conspiracies, this podcast is for you. Each episode creates a gripping audio landscape exploring events that defy explanation — from baffling disappearances and cryptid sightings to the dark realities of the Cold War and the occult.

Episodes

Biological Warfare: From Ancient Sieges to Russia's Secret Laboratories
Biological Warfare: From Ancient Sieges to Russia's Secret Laboratories Oct 13, 2026 3494 This special Unexplained History broadcast follows biological warfare from its disputed Bronze Age beginnings through medieval sieges, colonial smallpox, Japan's Unit 731, Western programs, and the treaty intended to end them. The second half investigates the Soviet biological weapons system, the Aralsk smallpox outbreak, the Sverdlovsk anthrax disaster, defectors, inspections, and accidents at Ru
Roswell: The First Twenty-Four Hours Before the Legend Took Over
Roswell: The First Twenty-Four Hours Before the Legend Took Over Oct 10, 2026 3107 On a July afternoon in nineteen forty-seven, the Army air field at Roswell announced possession of a flying disc. Within hours, officers at Fort Worth presented wreckage they identified as a balloon and radar target. The reversal became one of the most durable mysteries of the twentieth century. This episode reconstructs the first day's surviving record before following the people, interviews, boo
Zodiac Killer: Why the New Cipher Claim Does Not Name Him Yet
Zodiac Killer: Why the New Cipher Claim Does Not Name Him Yet Oct 8, 2026 2975 A new claim says the Zodiac Killer's shortest name cipher points to a man once investigated in the murder of Elizabeth Short. The proposal joins two notorious unsolved cases, a cipher, a possible alias, and a set of newly published technical arguments. This episode follows the original letters, the two Zodiac ciphers that really were solved, and the thirteen symbols that still invite competing rea
Operation Northwoods: The False-Flag Plans the Pentagon Actually Wrote
Operation Northwoods: The False-Flag Plans the Pentagon Actually Wrote Oct 6, 2026 3080 In March nineteen sixty-two, the United States Joint Chiefs of Staff sent Defense Secretary Robert McNamara a memorandum about pretexts for military intervention in Cuba. Its annex proposed a manufactured attack on a ship, a campaign of terror blamed on Cuba, and a simulated civilian-airliner shootdown. These were preliminary proposals, not operations carried out. This episode follows the paper fr
Jack the Ripper: The DNA Mystery
Jack the Ripper: The DNA Mystery Oct 1, 2026 3241 A stained shawl has been presented as the object that finally reveals Jack the Ripper. A published forensic study found mitochondrial DNA profiles compatible with descendants of Catherine Eddowes and Aaron Kosminski. The finding is real enough to examine. The leap from a textile to a named murderer is much harder.This episode follows Eddowes through the surviving inquest, traces the shawl's claime
Nefertiti: The Hidden Chambers Beyond Tutankhamun's Tomb
Nefertiti: The Hidden Chambers Beyond Tutankhamun's Tomb Sep 29, 2026 3331 In September twenty twenty-six, a team studying Tutankhamun's tomb reported new geophysical anomalies north of its known rooms. Their proposed plan revives a remarkable idea: the famous royal burial may occupy only the outer part of a larger tomb made for Nefertiti. The search has already produced hopeful scans, conflicting scans and a published negative radar study. We follow the images and measu
Operation Sea-Spray: The Navy Ship That Sprayed a City With Bacteria
Operation Sea-Spray: The Navy Ship That Sprayed a City With Bacteria Sep 24, 2026 3523 In September nineteen fifty, the United States military carried out six simulated biological attacks on the San Francisco Bay Area. A Navy vessel released Serratia marcescens and Bacillus globigii from offshore while military teams measured how the living aerosol moved through the city. Days later, Stanford Hospital recorded an extraordinary cluster of Serratia infections. One patient, Edward Nevi
Havana Syndrome: Spies, Microwaves and the Danger
Havana Syndrome: Spies, Microwaves and the Danger Sep 22, 2026 3599 In two thousand twenty-four, a Norwegian government scientist reportedly tested a secret microwave-emitting apparatus on himself. He was said to have developed neurological symptoms resembling some anomalous health incidents, the official name for the experiences widely known as Havana Syndrome.The story sounds like a decisive experiment. It is not. This episode places the Norwegian report beside
The Bomb Filled With Bats That Set Its Own Airfield on Fire
The Bomb Filled With Bats That Set Its Own Airfield on Fire Sep 17, 2026 3220 In 1942, a Pennsylvania dentist proposed attacking Japan with bats carrying tiny incendiaries. His idea reached the White House and became a real military research program, complete with refrigerated bats, experimental carriers and tests at American airfields. The project produced one unforgettable accident. But the fire at Carlsbad was only part of the story. Unexplained History follows the propo
The Day 62 Children Said a UFO Landed at Their School
The Day 62 Children Said a UFO Landed at Their School Sep 15, 2026 3407 On September 16, 1994, dozens of children at Ariel School in Ruwa, Zimbabwe, said they had seen something extraordinary beyond their playground. Silver objects. Small figures. Eyes they struggled to describe. Their teachers had been inside. Before Harvard psychiatrist John Mack arrived, the story had already passed through parents, a headmaster, a television camera, and a collection of drawings. U
Majestic 12: Who Forged the Government's Alien Files?
Majestic 12: Who Forged the Government's Alien Files? Sep 10, 2026 3560 Majestic Twelve is the most durable alleged UFO cover-up in modern American history. Its papers describe a secret committee formed after a crash in nineteen forty-seven and briefed to President-elect Eisenhower. We follow the files from an anonymous roll of film to the National Archives, FBI, and a congressional inquiry. For most of the journey, the documents appear to form a hidden record. Then t
MH370: The Plane that Disappeared
MH370: The Plane that Disappeared Sep 8, 2026 3655 MH370 left Kuala Lumpur for Beijing with 239 people aboard. Its final radio message sounded routine. Then its identifying radar signal disappeared, a second track led back across Malaysia, and a satellite continued recording exchanges long after anyone heard from the cockpit.Twelve years later, Ocean Infinity has completed another phase of seabed searching. Malaysia has extended the agreement thro

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