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February 2025
- Questions and Answers: Volume 27
January 2025
- Mafia Royalty: The Five Families and Their Influence on New York
- Stalingrad: The Bloodiest Battle in History
- The History of Caffeine: From Ancient Brews to Modern Buzz
- 444 Days: The Iran Hostage Crisis
- Acoustic Kitty: The CIA’s Plan to Use Cats for Espionage
- The Origins and History of the Abolitionist Movement
- VTOL: Vertical Take-Off and Landing Aircraft
- Malaria: The Disease That Shaped History
- The Maha Kumbh Mela Pilgrimage: The World’s Largest Religious Festival
- Performance Enhancing Drugs and Substances
- The Worst Day in Human History: January 23, 1556
- Beijing: Exploring 3,000 Years of History
- Presidential Inaugurations: The Peaceful Transition of Power (Encore)
- Operation Market Garden (Encore)
- Pyotr Ilyich Tchaikovsky and the 1812 Overture (Encore)
- Caesar, Pompey, Crassus: The First Trimurate (Encore)
- Perpetual Motion (Encore)
- Famines
- The Schlitz Mistake
- The History of the Tomato (Encore)
- Gnosticism
- The Ultraviolet Catastrophe and the Creation of Quantum Mechanics
- Fractals
- Hosting the Olympics
- The Canadian Parliament
- The Black Death (Encore)
- FBI: The Federal Bureau of Investigation
- The Vikings
- Lions
- The Periodic Table of the Elements (Encore)
- Questions and Answers: Volume 26
December 2024
- New Year’s Traditions (Encore)
- Tokyo
- Game Shows
- The Siege of Tobruk
- The Geography of Canada
- Boxing Day (Encore)
- The Battle of Trenton
- The 1826 West Point Egg Nog
- The Plum Pudding Riots and the Puritan War on Christmas
- The Opium Wars (Encore)
- How to Build a Mars Colony
- The Late Bronze Age Collapse
- Superstitions
- Zone Rouge and the Iron Harvest (Encore)
- The Parthenon and the Acropolis of Athens
- Peanuts
- Sand
- Gunung Padang (Encore)
- Women’s Suffrage
- Prisoners of War and the Geneva Conventions
- The Korean War
- The Silk Road (Encore)
- CDs, DVDs, and Blu-Ray
- The Plans for a US/Canadian War
- The Julio-Claudian Dynasty
- Black Holes (Encore)
- The White House
- The Electrical Grid
- The War of the Roses
- The History of Tea (Encore)
- Questions and Answers: Volume 25
November 2024
- Representative Riffs
- The Tyranny of the Rocket Equation (Encore)
- The North American Turkey (Encore)
- The Islamic Caliphates
- Fermat’s Last Theorem
- Prisons and Jails
- The Panic of 1893 (Encore)
- The Election of 1788
- The Year 1600
- Multiple Births (Encore)
- California
- The History of the Bow and Arrow
- The Blitz
- Investing 101
- Citizenship
- The Magna Carta (Encore)
- The Nile River (Encore)
- The Bone Wars
- All About Butter
- Superman
- The Northwest Passage (Encore)
- The Roman Donut……LIVE!
- The Origin of Words and Phrases: Nautical
- The Battle of the Little Big Horn
- The Election of 1864 (Encore)
- Project Habakkuk
- The Surprising Origin of Monopoly (Encore)
- Squaring the Circle
- Questions and Answers: Volume 24
- The East African Rift (Encore)
October 2024
- Werewolves
- Vampires
- Frankenstein
- Mummies
- Zombies
- Uncontacted Peoples (Encore)
- Lizzie Borden
- East and West Berlin
- Terraforming Mars
- The Mongol Invasions of Japan (Encore)
- Conflict of the Orders: Plebeians vs Patricians
- The Solar Cycle
- Compound Interest
- The History of Breakfast
- Michaelangelo (Encore)
- Guam And The Northern Mariana Islands
- What Has the JWST Discovered (So Far)?
- The History of Insurance (Encore)
- The Boxer Rebellion
- The Battle of the Bulge
- Rogue Waves
- The Invention of the Airplane (Encore)
- The Paraguayan War
- The Marshall Plan
- Bird Migrations
- The Origins of Playing Cards (Encore)
- The Crusader Sack of Constantinople
- Khmer Empire
- Oxygen (Encore)
- The Newspaper Wars
- Questions and Answers: Volume 23
September 2024
- Roman Roads
- Antarctica’s Dry Valleys (Encore)
- Relocated Sports Teams
- The Sistine Chapel (Encore)
- The United States Supreme Court
- Napoleon’s 100 Days
- The Godfather
- King Tutankhamen (Encore)
- The 1978 Lufthansa Heist
- The Grand Ethiopian Renaissance Dam
- Bowling
- What is Calculus? (Encore)
- Black Tuesday and the 1929 Stock Market Crash
- The French Origins of English
- Vichy France
- The Disappearance of Michael Rockefeller (Encore)
- Box Office Bombs
- Lake Superior
- Counterfeiting
- Imperial Units of Measure
- The Last Emperor of China
- Silbo Gomero
- Liberia (Encore)
- Permutations and Combinations (Encore)
- The National Park Service (Encore)
- The History of Pizza (Encore)
- The Donner Party (Encore)
- The Most Important Supermarket Visit in History (Encore)
- The Battle of The Marne (Encore)
- Questions and Answers: Volume 22
August 2024
- Dome of the Rock (Encore)
- Once Upon a Time in Shaolin
- The Prime Minister Who was Eaten
- The Crisis of the Third Century
- Exercise Tiger
- Exoplanets (Encore)
- Mos Maiorum and Unwritten Rules
- The Unification of Italy
- A Brief History of Texas
- The Lighthouse of Alexandria (Encore)
- Supercomputers and the Evolution of Computing Power
- Sun Yat-sen (Encore)
- The Scramble for Africa
- The Arctic and the North Pole
- A History of the Circus
- The Silurian Hypothesis (Encore)
- The Origin of Words and Phrases: Food
- The Year 1500
- The Anarchy (Encore)
- The Origins of the Vietnam War
- Mary, Queen of Scots
- Gemstones
- Fingerprints (Encore)
- The Battle of Fort Sumter
- The GOATs
- The Manhattan Project
- The Berlin Wall (Encore)
- The History of Data Storage
- Questions and Answers: Volume 21
- Home Field Advantage
- Spruce Goose (Encore)
July 2024
- The Library of Congress
- The Murder of Thomas Becket (Encore)
- Yellowstone National Park
- Gamblers Who Beat the House
- Why Did The Roman Empire Fall?
- The Hubble Space Telescope
- Cleopatra (Encore)
- The History of Motion Pictures
- Tristan da Cunha: The World’s Most Isolated Human Settlement (Encore)
- A Brief History of Nothing
- The Geography of Mexico
- The Germ Theory of Disease
- The 1919 Chicago White Sox Scandal (Encore)
- Textiles, Fabrics, and Cloth
- The Battle of Carrhae
- The Himalayas
- The Morgenthau Plan (Encore)
- The Apollo 1 Disaster
- The Herculaneum Papyri
- The Passenger Pigeon (Encore)
- The Worst Roman Emperors (Encore)
- The Origin of Words and Phrases: Common Idioms
- Unintended Consequences
- The English Premier League
- The Horrible Voyage of the 1905 Russian Baltic Fleet (Encore)
- How to Lie With Statistics
- Questions and Answers: Volume 20
- The Declaration of Independence (Encore)
- Broadway
- Thorium (Encore)
- The Abdication of Edward VIII
June 2024
- The Drake Equation (Encore)
- The North Africa Campaign
- Maize aka Corn
- Gregor MacGregor
- The Discovery and Burial of the Remains of Richard III (Encore)
- Air Conditioning
- The Founding of the United Nations
- The Marginal Revolution (Encore)
- The French Foreign Legion
- The Domestication of Cats (Encore)
- The History of Skyscrapers
- The Moon
- Phillip II of Macedon
- Charles Ponzi and His Scheme (Encore)
- The Danube River
- The History of Toilets
- Wu Zetian: China’s Only Female Emperor (Encore)
- The US Occupation of the Philippines
- The Origins of Wine (Encore)
- The War of 1812
- The History of Books
- College Sports
- NINJAS! (Encore)
- The Five Good Emperors (Encore)
- D-Day
- The Apollo Lunar Module
- A Brief History of Central America
- The History of Money (Encore)
- The St. Scholastica Day Riot
- Questions and Answers: Volume 19
May 2024
- The Gulf of Tonkin Incident
- Cowboys
- The Destruction and Rediscovery of Pompeii (Encore)
- The Wonderful World of Bees
- The Law of the Sea
- The Batan Death March
- How Barbed Wire Shaped the West and the World (Encore)
- Joan of Arc
- Nazis in South America
- Yugoslavia
- The Days of the Week (Encore)
- Viruses
- The Battle of Adrianople
- Smuggling Silk Out of China (Encore)
- The Anaconda Plan
- City Syndromes
- The Phoenician Civilization (Encore)
- Edward Teller and the Development of the H-Bomb
- Abdulrahman Ibrahim Ibn Sori: 40 Years a Slave (Encore)
- All About Hair
- Kamikazes
- The 1956 Suez Crises
- A History of Camping
- One Word: Plastics (Encore)
- Battle of Bannockburn
- The Plan Dog Memorandum (Encore)
- Canadian Football
- Spartacus and the Third Servile War (Encore)
- The Piltdown Man Hoax
- Questions and Answers: Volume 18
- Asteroids
April 2024
- A History of the Crusades
- White Feather Girls (Encore)
- Operation Valkyrie and the Plot to Kill Hitler (Encore)
- Fifty-four Forty or Fight!
- The Broad Street Cholera Outbreak (Encore)
- Qin Shi Huang: China’s First Emperor
- Central Park
- Concorde: The World’s Fastest Passenger Airplane (Encore)
- The Battle of the Teutoburg Forest (Encore)
- The Largest Known Things in the Universe
- The Origin of Words and Phrases: Military
- Batteries
- A Brief History of Belgium
- The History of Money (Encore)
- Great Wall of China (Encore)
- Sandwiches
- Aircraft Carriers
- King George III
- Sergeant York
- Ernest Shackleton and the Rescue of the Endurance (Encore)
- The History of Coffee (Encore)
- Songkran (Encore)
- The Telemark Raids (Encore)
- The Kidnapping of Charley Ross (Encore)
- Eclipses
- Questions and Answers: Volume 17
- Jackie Robinson
- The Legend of Bigfoot (Encore)
- Planet X
- The Vestal Virgins
March 2024
- The History of Apples
- The Easter Controversy (Encore)
- Jet Propulsion
- The Cult of Pythagoras (Encore)
- Adrian Carton de Wiart
- The War of the Currents (Encore)
- Railways
- Hong Kong
- Miyamoto Musashi
- The History of Rice (Encore)
- The History of the Bicycle (Encore)
- Michelin Star Restaurants
- Krakatoa
- The Grand Canyon
- The Election of 1860 (Encore)
- Stocks and Stock Exchanges
- Young Julius Caesar
- Pi Day (Encore)
- Homing Pigeons
- The History of the CIA
- The Domain Name System
- The History of Military Ranks
- Daylight Savings Time (Encore)
- The Legend of Ned Kelly (Encore)
- Senegal and The Gambia
- The Discovery of DNA
- The History of Postal Delivery (Encore)
- Napoleon Bonaparte
- The Little Ice Age (Encore)
- Questions and Answers: Volume 16
- The Battle of Cajamarca
February 2024
- Leap Year
- What Were The First and Second Reichs? (Encore)
- Stealth Technology
- Passports
- Cruciferous Vegetables
- The Tuskegee Airmen
- The 13th Amendment (Encore)
- Pearls
- Spanish-American War (Encore)
- The United States Presidential Nominating System
- Numbers Stations
- Conquering Mount Everest (Encore)
- Admiral Isoroku Yamamoto
- The Battle of Tours
- Phrenology
- Operation Paperclip (Encore)
- Transuranium Elements
- Marcus Antonius
- The Super Bowl (Redux)
- Apollo 13 (Encore)
- All About Eggs
- The Whiskey Rebellion
- The Desecration of St. Denis
- The Gracchi Brothers (Encore)
- Formal Logic
- The Red Baron (Encore)
- Questions and Answers: Volume 15
- Operation Barbarossa
- Angkor
January 2024
- The Geography of Spain
- Domestication of the Horse
- Prohibition
- Universe 25 (Encore)
- What is the Deal With Starship? (Redux)
- The James Webb Space Telescope (Redux)
- The Two-Hour Marathon (Redux)
- President Tyler’s Grandsons (Redux)
- The Most Dominant Athlete Ever (Redux)
- The Six Star General (Redux)
- Apollo 18, 19, and 20 (Encore)
- The History of Lead
- Emperor Nero
- Cahokia
- The Irish Potato Famine (Encore)
- The London Underground
- The History of Pasta
- Swiss Mercenaries (Encore)
- Alternative Forms of Space Flight
- Human Life Expectancy
- The Last of the Romanovs (Encore)
- LEDs: Light Emitting Diodes
- The Maginot Line
- Everything You Need to Know About Petroleum (Encore)
- Trial By Combat (Encore)
- Questions and Answers: Volume 14
- Introduction to the Philippines
- The Legend of Babe Ruth
- The Hindenburg Disaster (Encore)
- e: Euler’s Number
- Spirits and Liqueurs
December 2023
- Salt
- The Black Death
- The Second Triumvirate (Encore)
- High Fructose Corn Syrup (Encore)
- The Tomb of Alexander the Great (Encore)
- The Christmas Truce of 1914 (Encore)
- Why is Christmas on December 25? (Encore)
- Apollo 8
- The Santa Claus Association
- Snow
- Non-Euclidean Geometry
- Madrid
- Scurvy (Encore)
- The Assassination of Abraham Lincoln
- Encyclopedias
- The Acadian Expulsion (Encore)
- Potpourri: Incredible Coincidences
- Copper
- Alexander the Great
- Punctuation Marks (Encore)
- Cracking the Enigma Code
- The Quasi-War
- Shakespeare’s English (Encore)
- Hanukkah
- Did the US Have Advanced Knowledge of the Attack on Pearl Harbor?
- The Walled City of Kowloon (Encore)
- The Extraordinary Life of Josephine Baker
- The History of Farming
- Questions and Answers: Volume 13
- The Molotov–Ribbentrop Pact (Encore)
- The Library of Alexandria (Encore)
November 2023
- Gerrymandering
- Uranus
- Ocean Currents
- Was King Arthur Real? (Encore)
- The Opium Wars
- French Overseas Departments
- The Donner Party
- The History of Thanksgiving (Encore)
- The North American Turkey
- Who Were the Pilgrims? (Encore)
- The Monroe Doctrine
- The Element Mercury
- How Roman Armies Worked
- The Lindbergh Kidnapping (Encore)
- Parachutes
- The 1972 World Chess Championship (Encore)
- The League of Nations (Encore)
- The History of Pizza
- Eponymous Laws: Part 2
- The OMG! Particle
- Constantinople (Encore)
- Operation Unthinkable
- The Colosseum (Encore)
- Sergei Korolev: The Most Important Russian You’ve Probably Never Heard Of
- A Brief History of Digital Audio
- Remember, Remember the 5th of November (Encore)
- Questions and Answers: Volume 12
- All About the Sun
- The Hanseatic League (Encore)
- The Origin of Words and Phrases: India
October 2023
- The Salem Witch Trials
- H.H. Holmes, America’s ‘First’ Serial Killer
- Halloween (Encore)
- What is Calculus?
- The Yangtze River
- Operation Tannenbaum (Encore)
- The Sultanate of Oman
- A Brief History of Microscopy
- Plutonium (Encore)
- How the Roman Republic Became the Roman Empire
- The Magna Carta
- The Tensho Embassy
- All About Sushi (Encore)
- Beethoven’s 9th Symphony (Encore)
- China’s Imperial Dynasties
- Zone Rouge and the Iron Harvest
- The Speed of Sound
- The Dieppe Raid (Encore)
- The Roman Dictatorship
- The World’s Oldest Things
- The Domestication of Dogs (Encore)
- The History of the Tomato
- The Axis Powers
- Antibiotics
- The Princes in the Tower (Encore)
- The Knights Templar
- The Disappearance of Glenn Miller
- The Kiel Mutiny (Encore)
- The Nobel Prize
- The Partition of India and Pakistan
- Questions and Answers: Volume 11
September 2023
- Why Didn’t Canada Join the American Revolution? (Encore)
- Nitrogen
- Examining The Zipper (Encore)
- The Battle of Marathon
- How Blockchains Work
- Introduction to Rocks and Minerals
- The History of Chocolate (Encore)
- Nellie Bly
- Maximilian I of Mexico
- The Battle of Milvian Bridge (Encore)
- Operation Market Garden
- Paella
- The Big Year
- Wiliam Marshall: The Greatest Knight in History (Encore)
- The Northwest Passage
- Peggy Guggenheim
- Delhi
- The Know Nothing Party
- Elizabeth Báthory: Aristocratic Serial Killer (Encore)
- The Miller–Urey Experiment (Encore)
- Cincinnatus (Encore)
- The Berlin Airlift (Encore)
- World War Zero (Encore)
- The Sahara Desert Wasn’t Always (Encore)
- Questions and Answers: Volume 10
- Infinity and Beyond (Encore)
- The Big Bang
- São Tomé and Príncipe
- Nostradamus (Encore)
- Filibusters
August 2023
- Barcodes (Encore)
- How Hawaii Became a State
- Multiple Births
- A History of Human Labor
- Bricks
- Yes, We Have No Bananas (Encore)
- The Disappearance of Michael Rockefeller
- The Most Famous Song in the World (Encore)
- Oxygen
- A History of Tattoos
- Antarctica’s Dry Valleys
- Otto Rahn: The Real-Life Indiana Jones Villain (Encore)
- Gladiators
- The Silk Road
- The Queen of Sheba (Encore)
- Antimatter
- The Kingdom of Tonga
- Project Orion
- Prester John (Encore)
- The Surprising Origin of Monopoly
- Pompey Magnus
- The Lost Civilization of Atlantis (Encore)
- Stalag Luft III and the Great Escape
- The History of Tea
- Route 66
- The WOW! Signal
- Questions and Answers: Volume 9
- Ancient Colors (Encore)
- Singapore
- Permutations and Combinations
- Space Elevators
July 2023
- Alma Maria Mahler Gropius Werfel
- Betamax vs. VHS
- Mount Fuji
- The Battle of Thermopylae (Encore)
- Soyuz 11
- A Brief History of Golf
- The Maya Civilization
- The Origins of Wine
- The Battle of Midway
- The Discovery of Fire (Encore)
- The Elevator (Encore)
- Why Isn’t the West Indies a Country? (Encore)
- The Battle of Yarmouk (Encore)
- The Galapagos Islands (Encore)
- A Brief History of London
- The Silurian Hypothesis
- Titanium
- The Greatest Concert in History
- The History of Blue Jeans (Encore)
- Emperor Claudius
- Could There Be Extraterrestrial Life In Our Solar System?
- The Dead Sea Scrolls
- Europe vs EU vs Eurozone vs Schengen Area
- Questions & Answers: Volume 8
- The Chinese Language(s)
- The Mother of All Demos (Encore)
- The Rarest Feats in Sports
- A History of the American Flag
- The Taj Mahal
- Khalid Ibn al-Walid: The Sword of Allah (Encore)
- Canada Day
June 2023
- The Origin of Words and Phrases: Shakespeare
- Last Man on the Moon (Encore)
- Tau
- Operation Fork and Iceland in WWII
- The Toba Eruption
- More Than You Ever Really Wanted to Know About Sewers (Encore)
- The Large Hadron Collider
- The Anarchy
- The Persian Empire(s)
- Lady Death: Lyudmila Pavlichenko (Encore)
- Dome of the Rock
- The Negro Leagues
- Father and Son Medal of Honor Winners
- Dadaism
- Invasive Species
- Rat Eradication on South Georgia Island (Encore)
- The Mongol Invasions of Japan
- Iron
- Gunung Padang
- Esperanto and the Search for a Global Language (Encore)
- Comic Books
- The Night the Stars Fell Down – 1833
- England, Britain, and the United Kingdom: What’s the Difference?
- Bell Labs (Encore)
- The Cadaver Synod
- Smuggling Silk Out of China
- The Town That Forgot It Was In The United States
- Questions & Answers: Volume 7
- The East African Rift
- The Fermi Paradox (Encore)
May 2023
- Uncontacted Peoples
- The History of Insurance
- The Lost Colony of Roanoke
- Why Is The Sky Blue? (Encore)
- Attila the Hun
- Tsutomu Yamaguchi: The Man Who Survived Two Atomic Bombs
- The Meteor That Determined the Outcome of a Battle
- Terra Nullius (Encore)
- The Solomon Islands
- Irrational Numbers
- The Origin of Words and Phrases: Sports
- Why Wasn’t the Wheel Invented Sooner? (Encore)
- Mount St. Helens
- Stealing the Mona Lisa (Encore)
- The Most Dangerous Substances in the World
- Moneyball and the Rise of Advanced Statistics in Sports
- Namibia
- Mother’s Day (Encore)
- Thorium
- The Domestication of Cats
- The Trinity Test (Encore)
- The Manila Galleons
- How Wild Was the Wild West?
- The International Space Station
- Questions & Answers: Volume 6
- British Coronation Traditions
- Cinco de Mayo
- How Many Countries Are There? (Encore)
- Separated at Birth
- Galaxies
- Lady Jane Grey
April 2023
- Why The Map In Your Head Is Wrong (Encore)
- The Pantheon
- Arbor Day
- The Tyranny of the Rocket Equation
- Was the Holy Roman Empire, Holy, Roman, or an Empire? (Encore)
- The Aral Sea
- ANZAC Day
- Venus
- Han van Meegeren: Forgery As an Art Form (Encore)
- The Origin of Words and Phrases: Volume 1
- The History of Coffee
- The Zimmerman Telegram (Encore)
- The Berlin Wall
- The Rise of Agriculture
- Liberia
- Typhoid Mary
- The History of Horses in North America (Encore)
- Songkran
- Oliver Cromwell
- Fingerprints
- An Introduction to the Balkans
- The Easter Controversy
- Black Holes
- Cleopatra
- Which Came First: Beer or Bread? (Encore)
- The Great Lakes
- Thor Heyerdahl and the Kon-Tiki Expedition
- The Five Good Emperors
- Episode 1000!
- April Fool’s Day (Encore)
March 2023
- World’s Most Famous Bets
- Fallacious Reasoning (Encore)
- Ramadan
- The October Crisis
- The Marginal Revolution
- Libraries
- Migration to the Americas
- Negative Numbers
- Early American Alcohol Consumption (Encore)
- The Origins of Baseball
- The 1964 Alaska Earthquake
- Sun Yat Sen
- The Amazon River
- Venice
- The Cuban Missile Crisis
- El Niño and La Niña (Encore)
- RADAR
- The History of Rock and Roll
- The National Park Service
- The Panama Canal
- Paper
- Houdini
- Chickens (Encore)
- The Knights of Malta
- The 1258 Siege of Baghdad
- Questions & Answers: Volume 5
- The Football War
- Out of Africa
- Rosie the Riveter
- Lysenkoism (Encore)
- All About Air
February 2023
- Perpetual Motion
- The Most Important Supermarket Visit in History
- Proscription Lists
- Nanotechnology
- The City of Paris
- The History of the Compass (Encore)
- Game Theory
- Space Shuttle Challenger Disaster
- President’s Day
- The Battle of The Marne
- Artificial Sweeteners
- The 27th Amendment (Encore)
- The Boston Massacre
- Magnetic Pole Reversal
- The Dunning-Kruger Effect
- The Thirty Years’ War
- The Super Bowl (Encore)
- Vitamin D
- Neptune
- The Cult of Reason
- Spruce Goose
- Wu Zetian: China’s Only Female Emperor
- Questions & Answers: Volume 4
- United States Minor Outlying Islands (Encore)
- 536: The Worst Year in History
- Teapot Dome Scandal
- Vanuatu
- All About Volcanoes
January 2023
- The Invention of the Airplane
- The Statue of Liberty
- The Carrington Event (Encore)
- Snake Oil (Encore)
- Tulipmania (Encore)
- The Purchase of Alaska (Encore)
- The Lykov Family (Encore)
- Ancient Rome and Ancient China (Encore)
- The Battle of Yorktown
- The Speed of Light
- The Passenger Pigeon
- The Glorious Revolution
- The Port Chicago Disaster (Encore)
- Sherman’s March to the Sea
- The History of Basketball
- Leprosy: Humanity’s Oldest Disease
- Tokyo Rose & Axis Sally (Encore)
- Zeno’s Paradoxes
- Tristan da Cunha: The World’s Most Isolated Human Settlement
- What Were The First and Second Reichs?
- The Destruction and Rediscovery of Pompeii
- Limnic Eruptions: The Rarest Natural Disaster
- The Morgenthau Plan
- The Antikythera Mechanism (Encore)
- Carbon: Can’t Live Without It
- Questions & Answers: Volume 3
- The Speaker of the House of Representatives
- The Trojan War
- The Zone of Death
- Why Are There No Flying Cars?
- New Year’s Traditions
December 2022
- Why Does the Year Start on January 1? (Encore)
- The Sight and Sound Decadal Survey
- The Dead Sea (Encore)
- Abram Petrovich Gannibal
- The Little Ice Age
- Boxing Day
- The Christmas Truce of 1914
- Christmas Foods
- Christmas Carols
- The Winter Solstice
- Mount Athos (Encore)
- NASA’s Human Computers
- The Tombs of the Unknown Soldiers
- Isaac Newton: The World’s Most Famous Alchemist
- The Reconquista
- Salvator Mundi (Encore)
- Operation Valkyrie and the Plot to Kill Hitler
- Apollo 13
- The Walled City of Kowloon
- Paricutin: The World’s Youngest Volcano
- The Pipe Organ
- The Island of Saint Helena (Encore)
- The Roman Triumph
- Hi Ho Silver!
- The Most Important Battles in History
- Questions & Answers: Volume 2
- The Domestication of Dogs
- The History of Credit Cards (Encore)
- The Dumbest Game Every Played
- The Red Baron
- The Space Shuttle
November 2022
- Countries That Changed Their Name
- Prime Numbers (Encore)
- Geography is Destiny
- Weather Forecasting
- The Basques
- Black Friday (Encore)
- Who Were the Pilgrims? (Encore)
- The History of Thanksgiving (Encore)
- Ummm…..Okay
- The Greatest Buildings Never Built
- The FIFA World Cup
- The Gracchi Brothers
- The Triangle Shirtwaist Factory Fire (Encore)
- Leap Seconds
- The Dieppe Raid
- World Population Throughout History
- The Lighthouse of Alexandria
- The Last of the Romanovs
- Why Is the Sky Blue?
- The Isle of Man
- The Peace of Westphalia (Encore)
- A History of Midterm Elections
- Punctuation Marks
- When Exactly Did the Roman Empire Fall?
- Questions & Answers: Volume 1
- British Currency Decimilisation
- Horses in World War II
- Alfred Wegener and Continental Drift (Encore)
- Banned Techniques That Would Smash World Records in Track and Field
- The Presidential Line of Succession
October 2022
- The Panic of 1893
- Vinland, Vikings, and Lactose Intolerance (Encore)
- Philip II of Spain
- The Maldives
- Operation Felix
- The History of Recorded Sound
- The 13th Amendment
- Cricket for Dummies…..and Americans
- The Battle of Milvian Bridge
- Wind Power
- The Nubian Civilization and the Kingdom of Kush
- The Year Without A Summer (Encore)
- Vitamins
- Castle Engineering 101
- SETI: The Search for Extraterrestrial Intelligence
- The Broad Street Cholera Outbreak
- Rapa Nui (Easter Island)
- High Fructose Corn Syrup
- The Vasa (Encore)
- The Horrible Voyage of the 1905 Russian Baltic Fleet
- The Electromagnetic Spectrum
- The League of Nations
- The Kidnapping of Charley Ross
- Trial By Combat
- The History of Department Stores
- Airport Codes (Encore)
- How Barbed Wire Shaped the West and the World
- Broken Arrows: When Nuclear Weapons Go Wrong
- The Days of the Week
- Hurricanes and Typhoons
- Joseph Bonaparte: The King of New Jersey (Encore)
Septemeber 2022
- NINJAS!
- Ada Lovelace: The World’s First Computer Programmer
- Getting to the Bottom of Shoes
- The Discovery and Burial of the Remains of Richard III
- The Stanford Prison Experiment
- Astronomical Distances and the Age of the Universe
- Philippe Petit and the World’s Greatest Tightrope Walk (Encore)
- The Hindenburg Disaster
- Shakespeare’s English
- The Doolittle Raid
- The Channel Islands of Jersey and Guernsey
- The History of Chocolate
- How the US Congress Came To Be
- Carthago Delenda Est: The Third Punic War
- The Babbage Analytical Engine (Encore)
- The Wonderful World of Tin
- The Berlin Airlift
- All About Sushi
- The Telemark Raids
- The Legend of Bigfoot
- Didius Julianus: The Man Who Bought An Empire (Encore)
- The Transition from Elizabeth II to Charles III
- The Hollywood Sign
- The Very Strange Life of Ida Wood
- Ranked Choice Voting
- Wiliam Marshall: The Greatest Knight in History
- All About LASERS
- The Second Triumvirate
- The Judgement of Paris
- The Zodiac
August 2022
- The History of Postal Delivery
- Was King Arthur Real?
- The Artemis Program
- The River Congo
- The Louvre: The World’s Greatest Museum (Encore)
- The Schlieffen Plan (Encore)
- What Ever Happened to Amelia Earhart? (Encore)
- The History of Mathematical Symbols (Encore)
- J. Harlen Bretz: Proving Theories Via Outliving Your Critics (Encore)
- Luxembourg
- Gemini 3 and The World’s Most Controversial Corned Beef Sandwich
- The Legend of Jim Thorpe
- Spanish-American War
- Michaelangelo
- The Pan-American Highway
- The Origins of Playing Cards
- The History of NASA
- Formula One
- Innumeracy
- Lithium
- The Siege of Masada
- Gunfight at the OK Corral
- The Aurochs: The Once and Future King of Cattle
- White Feather Girls
- Did Vermeer Use A Camera Obscura? (Encore)
- Everything Is Made of Atoms
- Champagne
- “Let Them Eat Cake”
- The Republic of the Marshall Islands
- The Strait of Malacca
- The Sinking of the Bismarck
July 2022
- Mandarins and the Chinese Imperial Exams (Encore)
- The Cannonball Run
- The Planet Saturn
- Why Didn’t Canada Join the American Revolution?
- The Gettysburg Address
- Livia Drusilla: The Most Powerful Woman in Rome
- Communications Satellites
- Great Zimbabwe (Encore)
- The Boeing 747
- Hyman Rickover and the Nuclear Navy
- The History of the Compass
- The Tragic Flight of Vladimir Komarov and Soyuz 1
- The Past, Present, and Future of Coal
- The Colosseum
- The Murder of Thomas Becket
- The Travels of Ibn Battuta (Encore)
- Greenland
- Bonnie and Clyde
- Mata Hari
- Imaginary Numbers
- The Worst Roman Emperors
- The History of Cheese (Encore)
- The Origins of American Football
- The French Republican Calendar
- The Phoenician Civilization
- The Wreck of the Mary Rose
- The Mississippi River
- The Declaration of Independence
- The Tour de France
- Exoplanets
- Two-Year Anniversary Show
June 2022
- Diamonds Are Forever
- The Galapagos Islands
- Constantinople
- The Nuremberg Personality Tests
- Geothermal Energy
- How Accounting Changed The World (Encore)
- Noble Gases
- Universe 25
- Never Give Up, Never Surrender
- Morse Code
- Life in Ancient Rome
- Juneteenth
- The History of Horses in North America
- The Atacama Desert
- TORNADOES!
- Precision Munitions
- The Legend of Ned Kelly
- Olive Oil
- The Steam Engine
- Navajo Code Talkers (Encore)
- The Battle of the Teutoburg Forest
- Kiribati
- The History of Television
- The Nepalese Royal Massacre
- The Empire State Building
- Why The Map In Your Head Is Wrong
- Terra Nullius
- The Cult of Pythagoras
- The Wallace Line
- Yes, We Have No Bananas
May 2022
- Jupiter: The Solar System’s Largest Planet
- NATO: The North Atlantic Treaty Organization
- Great Dying of the Americas
- Did We Already Find Life On Mars? (Encore)
- The Queen of Sheba
- The First Triumvirate
- IQ: Intelligence Quotient
- A Brief History of the Mongol Empire
- Correlation vs Causation
- The Thirty Mile Zone (Encore)
- Was the Holy Roman Empire Holy, Roman, or an Empire?
- The History of Rice
- Lysenkoism
- The Petrodollar
- How Worried Should We Be About Asteroids?
- Saint Peter’s Basilica
- Pitcairn Island (Encore)
- The Library of Alexandria
- Friday the 13th
- King Tutankhamen
- The Vice President of the United States
- The Irish Potato Famine
- Nine Kings, One Room
- Mother’s Day (Encore)
- Bretton Woods
- All About Solar Power
- The 1919 Chicago Black Sox Scandal
- A Star is Born
- A History of the End of the World
- Charles Ponzi and His Scheme
- Samoa: The Cradle of Polynesia
April 2022
- Stanislav Petrov: The Man Who Saved the World (Encore)
- The 1812 Overture
- The History of BBQ
- All About Algorithms
- Elizabeth Báthory: Aristocratic Serial Killer
- The Gold Standard
- The Iffland Ring
- The Rise, Fall, and Possible Rise of the Wooly Mammoth
- The History of Photography
- Apollo 18, 19, and 20
- Ice Ages
- The Real-Life Lord of the Flies
- Chickens
- Righties vs Lefties (Encore)
- The History of Money
- The Hanseatic League
- Cryptography
- The Election of 1864
- Han van Meegeren: Forgery As an Art Form
- Buffalo Soldiers
- One Word: Plastics
- The Republic of Letters
- Esperanto and the Search for a Global Language
- The Catiline Conspiracy
- The Battle of Yarmouk
- Philippe Petit and the World’s Greatest Tightrope Walk
- Pedestrianism
- Behold! The Potato (Encore)
- White Elephants
- The Brachistochrone Problem
March 2022
- The History of Gunpowder
- The Unlikely Survival of Phineas Gage (Encore)
- The British Peerage and Honors System
- The Istanbul Canal
- The Roman Pomerium
- Stephanie St. Clair
- The History of the Tank
- The Eradication of Diseases
- Ernest Shackleton and the Rescue of the Endurance
- All About Hydrogen
- The Rite of Spring Riot
- The Last Soldier to Die in World War I (Encore)
- The Mother of All Demos
- The Pueblo Incident
- Abdulrahman Ibrahim Ibn Sori: 40 Years a Slave
- The Fall of Constantinople (Encore)
- The Ides of March
- Pi Day
- The Three Age System: Stone, Bronze, and Iron
- Otto Rahn: The Real Life Indiana Jones Villain
- Were the Dark Ages Really That Dark? (Encore)
- Holodomor
- Everything You Need to Know About Petroleum
- The Great Nottingham Cheese Riot of 1766
- Why Wasn’t the Wheel Invented Sooner?
- Tuvalu: The Least Visited Country in the World (Encore)
- The Plan Dog Memorandum
- Confusing Country Names
- Conquering Mount Everest
- Simo Häyhä: The White Death
- Mardi Gras
February 2022
- Peace of Westphalia
- The Voyages of Admiral Zheng He (Encore)
- Joseph Bonaparte: The King of New Jersey
- Roman Naming Conventions
- The Trinity Test
- The Lindbergh Kidnapping
- How SCUBA Diving Works
- The Kiel Mutiny
- The Nazi Bomb (Encore)
- Great Zimbabwe
- What is the Deal With Starship?
- Spartacus and the Third Servile War
- More Than You Ever Really Wanted to Know About Sewers
- The Wonderful World of Stromatolites
- Valentines Day (Encore)
- Kennewick Man
- Swiss Mercenaries
- How Göbekli Tepe Changed History (Encore)
- How Tides Work
- The Travels of Ibn Battuta
- A Brief History of New York City
- Scandals ending with -gate
- The Birth of the Modern Olympic Games (Encore)
- The Babbage Analytical Engine
- The History of the Submarine
- The Dyatlov Pass Incident
- Why Isn’t the West Indies a Country?
- The Spice Trade
January 2022
- The Mukden Incident
- A History of Utensils
- The Nile River
- Ramanujan (Encore)
- Genie the Feral Child (Encore)
- The American Whig Party (Encore)
- Operation Long Jump
- The Tomb of Alexander the Great
- The History of Cheese
- The 2022 Hunga Tonga–Hunga Ha’apai Eruption
- Didius Julianus
- Dresden Green Vault Burglary
- Ignaz Semmelweis (Encore)
- The Antikythera Mechanism
- Sports Curses
- Prime Numbers
- Mandarins and the Chinese Imperial Exams
- The Trust Territory of the Pacific Islands
- Rare Earth Elements
- The Acadian Expulsion
- The History of the Bicycle
- The Marian Reforms
- Olga of Kiev: The Patron Saint of Vengeance
- The Ark of the Covenant
- The Meiji Restoration
- The History of the Piano
- Did Vermeer Use A Camera Obscura?
- Great Wall of China
- World War Zero
- The History of the Eiffel Tower (Encore)
- Why Does the Year Start on January 1? (Encore)
December 2021
- Did Gutenburg Really Invent the Printing Press? (Encore)
- The Halifax Explosion (Encore)
- Mad Jack Churchill (Encore)
- The Incredible Polgar Sisters (Encore)
- Why Does Liechtenstein Even Exist? (Encore)
- The Immortal Henrietta Lacks (Encore)
- So What Exactly Are Frankincense and Myrrh
- Why is Christmas on December 25? (Encore)
- The History of Santa Claus
- The World’s Strangest Christmas Traditions
- The Highly Improbable Flight of Mathias Rust
- The James Webb Space Telescope
- Why You Can’t Resign From the British Parliament (Encore)
- Tsunamis
- The Triangle Shirtwaist Factory Fire
- All About Chess
- Moon Rocks
- The History of World Fairs
- The Wives of Henry VIII
- The Mount Tambora Eruption (Encore)
- A Human History of Ice
- Plutonium
- How Accounting Changed The World
- December 8, 1941
- The Rise and Dramatic Fall of Sejanus (Encore)
- Saint Nicholas
- Pope Joan
- The Internal Combustion Engine
- Olympic Boondoggles
- Banana Republics
- The Vasa
November 2021
- Planet 9
- The Sistine Chapel
- The Mechanical Turk
- The Sahara Desert Wasn’t Always
- Black Friday
- The History of Thanksgiving (Encore)
- Who Were the Pilgrims?
- Pitcairn Island
- Everything You Wanted to Know About Seawater
- Vinland, Vikings, and Lactose Intolerance
- The Cola Wars
- The Culper Ring
- Episode 500!
- Inflation
- Operation Paperclip
- Gold! Gold! Gold!
- The Battle of Alesia (Encore)
- Superconductivity
- The Fall of Constantinople
- The Treaty of Versailles
- Shibboleths
- Suez Canal
- Tokyo Rose & Axis Sally
- Paradoxes
- Skunkworks
- Remember, Remember the 5th of November
- The Election of 1860
- Giving the Finger to the Denisovans
- Lyudmila Pavlichenko
- Benedict Arnold
October 2021
- The Real Dracula
- Halloween (Encore)
- How Casinos Work
- Ambergris: The World’s Most Valuable Smelly Substance
- Monarchies vs Republics
- The Louvre: The World’s Greatest Museum
- Wedding Traditions
- United States Minor Outlying Islands
- The 1972 Olympic Basketball Final
- The Great Hanoi Rat Massacre of 1902
- Why Does Monaco Even Exist?
- Navajo Code Talkers
- How LIGO Works
- El Niño and La Niña
- The Lost Civilization of Atlantis
- The Brooklyn Bridge
- Decimation (Encore)
- Moore’s Law
- Stanislav Petrov: The Man Who Saved the World
- Nostradamus
- USS Constitution
- The Dancing Plague of 1518
- Which Came First: Beer or Bread?
- Did Shakespeare Write the Works of Shakespeare? (Encore)
- Mountweazles (Encore)
- The Legend of Andre the Giant (Encore)
- The Canary Islands (Encore)
- Longitude (Encore)
- The Four Great Inventions of Ancient China
- The Korean Demilitarized Zone (DMZ)
- The Greatest Thing Since Sliced Bread (Encore)
September 2021
- Year One
- The Nazi Bomb
- Alexandria
- Survivor Bias
- The Molotov–Ribbentrop Pact
- Righties vs Lefties
- Polynesian Navigators (Encore)
- The Great Pyramid of Giza
- The War of the Currents
- The 1961 US Figure Skating Team
- Alfred Wegener and Continental Drift
- The Truth About Pirates
- The Assassination of James A. Garfield (Encore)
- Treachery of the Long Knives
- Cosmic Rays
- The Port Chicago Disaster
- How Göbekli Tepe Changed History
- Fusion Power
- The Island of Saint Helena
- The New York World Trade Center
- The Unlikely Survival of Phineas Gage
- Atomic Bombs and Two-Piece Swimsuits (Encore)
- The Geologic Timeline
- The Ride of Sybil Ludington
- Air Force One
- The Carrington Event
- The Fermi Paradox
- The Oxford English Dictionary (Encore)
- Behold! The Potato
- The Elgin Marbles
August 2021
- Ignaz Semmelweis
- The Planet Mercury
- The Golden Gate Bridge
- The Year Without A Summer
- The Number of the Beast
- Domo Arigato Mr. Momofuku (Encore)
- Starfish Prime
- The Schlieffen Plan
- The Dead Sea
- Black Tot Day
- The Civic Crown
- Fritz Haber: The Best and Worst Chemist in History
- The Golden Record (Encore)
- The History of Credit Cards
- The USS Indianapolis
- Snake Oil
- History of the Lullaby
- The Aberfan Disaster
- The Great Molasses Flood (Encore)
- Electric Cars
- Salvator Mundi
- The Other Mozart
- Tokyo 2020 Olympics: Medal and Record Recap
- Queen Boudica
- The Monty Hall Problem (Encore)
- The 27th Amendment
- The American Whig Party
- How Do Satellites Work?
- The Great Lisbon Earthquake of 1755
- The Periodic Table of the Elements
- Who Was the Greatest Olympian of All Time?
July 2021
- Robert Smalls: Man of Action (Encore)
- The Korean Axe Murder Incident
- Cincinnatus
- Were the Dark Ages Really That Dark?
- Timothy Dexter: Sometimes It’s Better To Be Lucky
- The Children of Nazis
- All About Uranium
- The Last Germans to Surrender (Encore)
- The Modern Olympic Games
- The 1972 World Chess Championship
- Barcodes
- The Miller–Urey Experiment
- The Erfurt Latrine Disaster (Encore)
- The Last Soldier to Die in World War I
- The Kingdom of the Netherlands
- The Great Emu War
- Infinity and Beyond
- The Eiffel Tower
- Objects of State: United States Edition
- The Sibylline Books
- Global Temperature Extremes
- Supernovas: They’re a Blast!
- Concorde: The World’s Fastest Passenger Airplane
- Was Jeanne Calment Really The World’s Oldest Person?
- Khalid Ibn al-Walid: The Sword of Allah
- The Hagia Sophia (Encore)
- What Ever Happened to Amelia Earhart?
- The District of Columbia
- 10 Ways You Can Know That the Earth is a Sphere
- Prester John
- One-Year Anniversary Show
June 2021
- Milankovitch Cycles (Encore)
- Tuvalu: The Least Visited Country in the World
- The History of Blue Jeans
- Did We Already Find Life On Mars?
- The Lost City of Cecil B. DeMille
- Absolute Zero
- The World’s Most Expensive Things
- The Assassination of President William McKinley
- A History of Computer Games
- The Voyages of Admiral Zheng He
- The Tunguska Event (Encore)
- How and What Do Astronauts Eat in Space?
- The World’s Greatest (Worst?) Misers
- The Rise and Dramatic Fall of Sejanus
- Gibraltar: Why Part of the UK is in the Mediterranean
- The History of the Microwave Oven
- Post-WWII German Expulsions
- The Drake Equation
- Sacco and Vanzetti
- The Six Political Eras In American History
- Apollo–Soyuz: The End of the Space Race
- How Clarence Birdseye Created the Frozen Food Aisle
- Why Don’t We All Drive On The Same Side of the Road? (Encore)
- Isambard Kingdom Brunel (Encore)
- The Incredible Polgar Sisters
- Beethoven’s 9th Symphony
- Why You Can’t Resign From the British Parliament
- Academic Degrees
- The St. Nazaire Raid
- Gaius Appuleius Diocles – The Richest Athlete in History
May 2021
- The History of Memorial Day
- Why Does Liechtenstein Even Exist?
- The History of Mathematical Symbols
- The Battle of Alesia
- Potemkin Villages
- Bell Labs
- The 17-Year Cicada
- Tarrare: The Hungriest Man in History
- The Mercator Projection (Encore)
- Really Expensive Musical Instruments
- Scurvy
- The 2013 America’s Cup: The Greatest Comeback in Sport’s History
- Citizen Kane: The Greatest Movie Ever Made?
- Airport Codes
- Potpourri: Spain Edition
- The British Crown Jewels
- The Immortal Henrietta Lacks
- Examining The Zipper
- Randomness
- The Largest City in the World
- The South Atlantic Anomaly
- Juan Sebastián Elcano
- Mother’s Day
- The USS William D. Porter: The Unluckiest Ship in WWII
- The International Red Cross and Red Crescent
- EGOT
- The Leaning Tower of Pisa
- Genie the Feral Child
- Queen Isabella
- The Battle of Thermopylae
- May Day
April 2021
- The Mount Tambora Eruption
- J. Harlen Bretz: Proving Theories Via Outliving Your Critics
- Mad Jack Churchill
- The Speech Richard Nixon Never Gave (Encore)
- Salvador Dali
- DEFCON
- Hanns Scharff: Master Interrogator of the Luftwaffe
- Longitude
- The Tallest Structures in History
- The Thirty Mile Zone
- The Halifax Explosion
- The World’s Oldest Restaurant
- Lingua Latina
- Who Was the 5th Beatle?
- The Dodo Bird
- Early American Alcohol Consumption
- Elizabeth Swaney and the Power of Just Showing Up
- Ancient Colors
- Non-Spanish Languages of Spain
- Charles Boycott
- Wrestlemania
- The Assassination of James A. Garfield
- Why Does Vatican City Exist?
- Polynesian Navigators
- The United State’s Name
- Al Andalus
- The Podcast About Podcasts
- The Incomparable Hedy Lamarr
- Why Did Hitler Declare War on the United States?
- April Fool’s Day
March 2021
- Mount Athos
- The History of the English Language
- Spanish Africa
- The Red Ball Express
- Fantasy Nobel Prizes: Isaac Newton
- The 7 People Who Control the Internet
- The Problem With Track & Field World Records
- Did Shakespeare Write the Works of Shakespeare?
- Rome: Republic vs Empire
- La Liga
- The Svalbard Global Seed Vault
- Understanding Orchestras
- The B-52 Stratofortress
- The Yellow Fleet
- St. Patrick’s Day
- Unratified Amendments
- El Gordo
- Daylight Savings Time
- How the US Civil War Really Ended
- How Australia Won Its First Winter Olympic Gold Medal
- Why Does San Marino Even Exist?
- A History of Vaccines
- The Isabella Stewart Gardner Museum Heist
- The Mercury 13
- The Iditarod
- Operation Sea Lion
- Darwin’s Other Theory
- President for a Day
- The Deep Biosphere
- Zeppelins
- The War of Jenkin’s Ear
February 2021
- The Princes in the Tower
- The Zimmerman Telegram
- Cathedrals
- Mountweazles
- A History of Mars Exploration
- The London Beer Flood
- Units of Measure
- Mitochondrial Eve
- The Elevator
- Space Junk
- Who Was the Richest Person in History? (Encore)
- Why are French Fries called French Fries? (Encore)
- Why Doesn’t the US Use The Metric System? (Encore)
- Decimation
- The Theremin
- Valentines Day
- Domus Aurea
- The SS Politician
- Hammurabi’s Code
- The Monty Hall Problem
- The Legend of Andre the Giant
- Jack the Ripper
- The Super Bowl
- AM/FM
- Tulipmania
- The Smallest Country in the World
- The 1937 Soviet Census
- Extraterritoriality
January 2021
- The Dionne Quintuplets
- Operation Plumbbob
- QWERTY
- The Green Bay Packers
- Cosmos 954
- Milankovitch Cycles
- Project MKUltra
- The Year of the Five Emperors
- The Year of the Four Emperors
- The Oxford English Dictionary
- Exclaves and Enclaves
- Inauguration Day
- The Crash at Crush
- ALL RATS MUST DIE!!!
- The British Pound(s)
- Moving Day in New York
- Did Gutenburg Really Invent the Printing Press?
- The Dunbar Number
- D.B. Cooper
- Surströmming
- Hispania
- The Nuclear Football
- The McRib
- The Erfurt Latrine Disaster
- The Golden Record
- The Last Germans to Surrender
- The 12 Days of Christmas
- The Canary Islands
- Reginaldus
- The SS Warrimoo
- Why Does The New Year Start on January 1?
December 2020
- Nijmegen: The City That Remembers (Encore)
- The Election of 1824 (Encore)
- The Most Famous Song in the World (Encore)
- Kayfabe (Encore)
- The Six Star General (Encore)
- Atlantropa: The Most Ridiculous Idea Ever (Encore)
- The Last Crow War Chief (Encore)
- The Most Dominant Athlete Ever (Encore)
- The Empire that Never Existed (Encore)
- Why Do We Celebrate Christmas on December 25?
- Catalonian Christmas Traditions
- Why Don’t We All Drive on the Same Side?
- What’s the Deal With Dark Matter?
- The Speech Richard Nixon Never Gave
- The Rosetta Stone
- Atomic Bombs and Two-Piece Swimsuits
- All About ZIP Codes
- The World’s Oldest Democratic Body
- The Terrible Fate of Blanche Monnier
- Aluminum
- Radiometric Dating
- The Man Who Didn’t Want to be Pope
- Roman Concrete
- The Mercator Projection
- Picasso
- The Real Illuminati
- The Voynich Manuscript
- How Many Nobel Prizes Should Einstein Have Won?
- Syndrome K
- Martha Mitchell Was Right
- Radiation 101
November 2020
- Spanish Foods
- Battle of Cannae
- The House of David
- Operation Tannenbaum
- Get the Lead Out
- George Eyser
- The History of Thanksgiving
- The Holy Grail
- America’s First Law
- The World’s Largest Co-Principality
- Operation London Bridge
- UNESCO World Heritage Sites
- The Pintupi Nine
- The Election of 1800
- Spanish Festivals
- Jury Duty
- The Longest Games in History
- The Sultana Steamboat Disaster
- Blues vs Greens
- The Assassination of Arch Duke Franz Ferdinand
- Really Big Telescopes
- The Sagrada Familia
- Ramanujan
- A History of Bread
- The Pig War
- What Exactly Happens After Election Day?
- Extremely Close Elections
- Who Was the Richest Person in History?
- The Camino de Santiago
- The Great Molasses Flood
October 2020
- Halloween
- Last Man on the Moon
- The History of Antarctica
- Domo Arigato Mr. Momofuku
- The World’s Deepest Hole
- The Continents
- Outlawry
- Tsar Bomba
- Extremely Long Term Debt
- The History of Presidential Debates
- Pyrrhic Victory
- The Election of 1876
- The Purchase of Alaska
- Operation Mincemeat
- The Curious Case of Kaspar Hauser
- The History of Ketchup
- Number One at Being Number Two
- Episode 100
- The Earth’s Most Extreme Places
- The SR-71 Blackbird
- Take the Penny, Leave the Penny
- That Time the CIA Kidnapped a Soviet Lunar Lander
- The Fabian Strategy
- Containerization
- Who is the Current Roman Emperor?
- Cold Fusion
- Wrestling’s GOAT: Aleksandr Karelin
- Károly Takács: Ambidextrous Gold Medalist
- The Eradication of Smallpox
- The Tunguska Event
- The Hagia Sophia
September 2020
- The Electoral College
- Robert Smalls: Man of Action
- US Territories
- Greek Fire
- Isambard Kingdom Brunel
- Point Nemo
- Potpourri Vol II: The Frozen Four
- The Global Positioning System
- All Roads Lead to Rome
- The Lykov Family
- Nijmegen: The City That Remembers
- The Discovery of Fire
- No Show
- No Show
- No Show
- No Show
- No Show
- No Show
- Potpourri Volume I: Survival
- A Fist Full of Dollars
- Who Discovered Calculus?
- Fallacious Reasoning
- The Fosbury Flop
- An Incredibly Bright Idea
- The Two-Hour Marathon
- The First Transatlantic Cable
- The Election of 1824
- The Seven Wonders of the Ancient World
- That New Pope Smell
- The World’s Oldest Satellite
August 2020
- A Brief History of Timekeeping
- The First Pandemic
- Eponymous Laws
- Football, Soccer, and Rugby
- The Latin Alphabet
- Why are French Fries called French Fries?
- The Last US Civil War Pension
- The Most Famous Song in the World
- The US/Canadian Border
- The English Longbow
- The Man Who Fed the World
- Why Doesn’t the US Use the Metric System?
- Cursus Honorum
- European vs North American Sports
- Lis Hartel: A Remarkable Olympian
- The United Countries of America
- Church of the Holy Sepulchre
- The Real Life Dexter
- Damnatio Memoriae
- The Washington Generals
- Kayfabe
- Drug Lord Hippopotamuses
- Grandmother of Europe
- Boxing’s Alphabet Soup
- Lunar Orbit Rendezvous
- The Original Dow Jones Companies
- Lloyd Burke: American Badass
- The Great Peshtigo Fire
- British Imperial Leftovers
- Van Halen and M&Ms
- The Pitch Drop Experiment
July 2020
- Beamonesque
- The French Scrabble Champion
- The Interstate Highway System
- How Many Planets Are There?
- The Prime Minister Who Disappeared
- The Julian and Gregorian Calendars
- Atlantropa: The Most Ridiculous Idea Ever
- When did Canada REALLY become independent?
- Neil Armstrong’s First Time in Space
- Blowouts
- The British Line of Succession
- The Six Star General
- The 1960 Popular Vote
- Jesse Owens vs Usain Bolt: Who Would Win?
- Zero, My Hero
- The Army That Never Was
- Time Zone Oddities
- Rutherford B. Hayes is a Big Deal in Paraguay
- The Last Crow War Chief
- Disco Demolition Night
- The Greatest Simplest Idea in the World
- Stealing the Mona Lisa
- Ancient Rome and Ancient China
- The Greatest Thing Since Sliced Bread
- How Many Countries Are There?
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