Can propaganda decide who history remembers as the villain? From Richard III and Cleopatra to China's Wu Zetian and Genghis Khan, this Dad Tangent explores how political enemies, later historians, and cultural expectations can shape a reputation for centuries—and why the version of history that survives isn't always the whole story.

Why did medieval kings sometimes blind or mutilate their rivals instead of simply killing them? From Byzantine emperors and Bernard of Italy to Hungary's blind King Béla II, this History with Dad tangent explores the disturbing political logic behind medieval mutilation—and why the supposedly foolproof strategy sometimes failed spectacularly.

Cnut the Great built one of the most remarkable kingdoms of the Viking Age, ruling England, Denmark, and Norway. But when Cnut died in 1035, the North Sea Empire almost immediately began coming apart. His sons Harold Harefoot and Harthacnut competed for England, Queen Emma of Normandy fought to preserve her family’s position, and old rivalries returned across Scandinavia. In this episode of History with Dad, we follow the chaotic succession after Cnut’s death, the mystery surrounding Harold Harefoot’smother, the return of Edward the Confessor, the rise of Magnus the Good, and the final collapse of Cnut’s empire.

What happens after you conquer a country? Winning the war is only the beginning. In this Dad Tangent from History with Dad, we look at why successful conquerors often keep surprisingly large parts of the governments they just defeated. Starting with Cnut's conquest of England, we explore Cyrus the Great and the Persian Empire, Roman rule, Britain's use of indirect rule, and the catastrophic Khmer Rouge attempt to tear Cambodia's existing society and institutions apart. Because conquering a kingdom is one thing. Figuring out who collects the taxes on Monday morning is something else entirely.

Why do we love stories that remind powerful people they still have limits? In this Dad Tangent from History with Dad, we start with the famous story of King Cnut and the tide, then look at Alexander the Great's encounter with Diogenes, the Roman tradition of reminding victorious generals of their mortality, George Washington voluntarily surrendering power, and Louis XIV's very different approach to kingship. Along the way, we explore why stories about humility, restraint, and the limits of power have survived for centuries.

How did a Viking become King of England? In this episode of History with Dad, we follow the dramatic conclusion of England's war between Edmund Ironside and Cnut. After the Battle of Assandun, the kingdom is briefly divided between two kings before Edmund's sudden death leaves Cnut in control. From there, we explore how Cnut transformed from conqueror into one of medieval Europe's most successful rulers, building the North Sea Empire by uniting England, Denmark, and Norway. Along the way, we meet Emma of Normandy, uncover the real story behind King Cnut and the tide, and see why governing proved even harder than winning the throne.

Why does history so often blame one person for disasters that were actually caused by dozens of different factors? In this Dad Tangent from History with Dad, we explore why history loves simple stories. From the fall of the Western Roman Empire to General George McClellan, Captain William Bligh, and the HMS Bounty, we'll see how complicated events often get pinned on a single individual. Then we'll look at one famous exception—Genghis Khan—whose personal leadership really did change the course of world history.

Can one decision make an already difficult situation even worse? In this Dad Tangent from History with Dad, we explore some of history's biggest political miscalculations. From Athens' disastrous invasion of Sicily to Germany's unrestricted submarine warfare in World War I and Japan's attack on Pearl Harbor, history is full of leaders whose solutions created even bigger problems. We also look at one famous moment when cooler heads prevailed during the Cuban Missile Crisis. Along the way, we connect those lessons back to King Æthelred and the St. Brice's Day Massacre, asking whether one decision helped set the stage for an even greater Viking invasion.

The Viking Age enters a new era as raiding gives way to conquest. In this episode of History with Dad, we explore Iceland's peaceful conversion to Christianity, Leif Erikson's voyage to Vinland and the earliest confirmed European settlement in North America, England's growing crisis under King Æthelred, the controversial St. Brice's Day Massacre, the rise of professional Viking armies, and Sweyn Forkbeard's successful conquest of England. Along the way, we examine the archaeology behind L'Anse aux Meadows, the evidencesurrounding Saint Brice's Day, and how Viking ambitions evolved from plunder to kingship. Finally, we meet two men whose rivalry will shape the future of England: Edmund Ironside and Cnut.

How does an entire country change its religion? In this Dad Tangent from History with Dad, we explore why new religions sometimes spread with surprising speed. From the rise of Christianity in the Roman Empire and Kievan Rus to the rapid expansion of Islam, history shows that belief alone rarely explains these transformations. Politics, trade, rulers, culture, and genuine faith all played a part. We'll also look at Japan as a fascinating counterexample, where Christianity initially grew quickly before being suppressed for centuries.

Before we get started, if you've been enjoying History with Dad, following the show or leaving a rating really does help more people discover it. And if you've ever wondered about a history topic that would make a fun Dad Tangent, let me know with a comment or an email at [email protected].Some of my favorite episode ideas have started with questions from listeners.