The art of the grudge

When ambition turns toxic: The 10 most explosive rivalries of all time

History isn’t just a dry timeline of treaties and discoveries; it is a messy, vibrant, and often blood-soaked record of human ego. From the royal courts of England to the film sets of Hollywood, some of the world's most significant progress—and destruction—has been fueled by individuals who simply could not stand one another. Would you like to know more about 10 feuds born of political ambition, sibling rivalry, and corporate greed? Tune in now!

Way before Game of Thrones became a hit TV show, there was a real-life bloodbath known as the Wars of the Roses. This 15th-century dynastic struggle pitted two branches of the royal House of Plantagenet against each other: the Lancasters (symbolized by a red rose) and the Yorks (a white rose).

For thirty years, the English throne was a revolving door of kings, marked by brutal battles and Shakespearean betrayals. The feud finally ended when Henry Tudor (a Lancaster) defeated Richard III (a York) at Bosworth Field, marrying Elizabeth of York to unite the houses and birth the Tudor dynasty.

In the early days of the American Republic, politics wasn’t just a war of words, it was a matter of honor. Alexander Hamilton and Aaron Burr were both brilliant, ambitious men, but Hamilton spent years systematically undermining Burr’s career, calling him "dangerous" and "unprincipled."

The tension boiled over after the 1804 New York gubernatorial election. Burr, tired of Hamilton’s constant sabotage, challenged him to a duel. On the heights of Weehawken, New Jersey, Burr fired the shot that ended the life of the First Secretary of the Treasury. While Burr survived, his political reputation never did.

This wasn't just a personal spat, it was ultimately called the War of Currents. Thomas Edison, the "Wizard of Menlo Park," had bet his fortune on Direct Current, while his former employee, the eccentric genius Nikola Tesla, championed Alternating Current.

Edison went to extreme lengths to discredit Tesla and his financier, George Westinghouse, even orchestrating public electrocutions of animals to "prove" Alternating Current was dangerous. However, physics was on Tesla's side. Alternating Current could be transmitted over long distances far more efficiently than Direct Current. Today, when you flip a light switch, you’re seeing the legacy of Tesla’s victory in one of history’s greatest scientific rivalries.

The definitive American family feud took place in the Appalachian backcountry along the West Virginia-Kentucky border. What started as a lingering bitterness from the Civil War and a dispute over a stolen pig spiraled into a decade of surprise attacks, arson, and murder.

By the time the violence peaked in the 1888 "New Year’s Massacre," dozens had been killed or imprisoned. It took over a century for the families to officially sign a truce, proving that some grudges are written into the very DNA of a community.

In the late 1890s, the battle for the attention of New Yorkers gave birth to Yellow Journalism. Joseph Pulitzer (New York World) and William Randolph Hearst (New York Journal) competed to see who could print the most sensational, lurid, and often fabricated headlines.

Yet, this seemingly frivolous feud actually had geopolitical consequences. Both men used their papers to drum up pro-war sentiment during the Spanish-American War to boost circulation. Their race to the bottom changed the media landscape forever, teaching us that when news becomes a weapon in a personal rivalry, truth is usually the first casualty.

Hollywood’s most legendary "mean girl" feud was a masterclass in professional sabotage. These two powerhouse actresses spent decades trading insults and competing for roles. Their rivalry was so famous that it was leveraged for the 1962 film What Ever Happened to Baby Jane?

On set, Crawford reportedly put weights in her pockets during a scene where Davis had to drag her, just to hurt Davis's back. When Davis was nominated for an Oscar for the film, and Crawford wasn't, Crawford contacted the other nominees and offered to accept the award on their behalf if they won, which she did, just to spite Davis.

Prohibition-era Chicago was a chessboard, and Capone and Moran were the two most violent players. Capone’s Italian "Chicago Outfit" and Moran’s "North Side Gang" fought a bloody turf war for control of the city’s illegal booze trade.

The feud reached its horrific climax on February 14, 1929, with the St. Valentine’s Day Massacre, where Capone’s men, dressed as police, gunned down seven of Moran’s associates. Moran famously remarked, "Only Capone kills like that." Though Moran escaped the massacre, the event effectively broke his power and marked the beginning of the end for the gangland wars of the 1920s.

You might recognize these as sportswear giants, but they began as a bitter rift between two brothers, Adolf ("Adi") and Rudolf ("Rudi") Dassler. After a mysterious fallout during WWII—legend says it involved a misunderstood comment in a bomb shelter—the brothers split their shoe company in 1948.

Adi formed Adidas, and Rudi formed Puma. The feud divided their hometown of Herzogenaurach so deeply that it became known as "the town of bent necks," because residents would look at a person’s shoes before deciding whether to speak to them. The brothers were buried at opposite ends of the local cemetery, never having reconciled.

The two titans of "The Lost Generation" started as friends, but their relationship devolved into a toxic mix of jealousy and judgment. Hemingway, who prized masculine"stoicism, mocked Fitzgerald for his perceived weakness and his turbulent marriage to Zelda.

In his memoir A Moveable Feast, Hemingway took several posthumous jabs at Fitzgerald’s character and talent. Fitzgerald, meanwhile, was both awed and intimidated by Hemingway’s success. It was a rivalry of the pen where mutual admiration was eventually smothered by the crushing weight of their respective egos.

The only thing more intense than a professional feud is a sibling one. These two Oscar-winning sisters didn't speak for the last 38 years of Fontaine’s life. The friction began in childhood but went nuclear when they were both nominated for Best Actress in 1942.

Fontaine won, and when de Havilland later won her own Oscar, she famously snubbed Fontaine’s attempt to congratulate her backstage. They disagreed on everything from their mother's medical care to who deserved the most fame. It remains the most enduring and frosty sibling rivalry in the history of the arts.

Stranger truths

10 things once dismissed as nonsense that are now undeniable science

Image: National Cancer Institute

Science is an unending search for truth, but when some truths are stranger than fiction, even the most experienced scientists find them hard to believe at first. As we learn more about the world we live in, phenomena once thought impossible are turning out to be more plausible than previously believed. From genetic memory to magnetoreception in humans, here are 10 examples of things once denied, doubted, or even feared—until evidence proved otherwise.

Image: digitale.de

Generational trauma was once considered nothing more than a poetic idea—but now, according to some scientists, it may be a measurable genetic phenomenon. Studies indicate that certain traumatic experiences can trigger epigenetic changes in DNA, influencing stress responses in descendants.

While researchers are still exploring the full scope of this phenomenon and which types of trauma can cause such changes, the findings challenge the long-held belief that our genetic makeup is entirely separate from individual life experiences.

Image: Jamie Street

Once dismissed as impossible, emerging research suggests humans may have a subtle magnetic sense linked to cells in the eye.

Scientists have identified cryptochromes—light-sensitive proteins in the retina—that could allow the eye to detect magnetic fields. Although the effect is weak and difficult to observe in humans, evidence indicates we might have a subconscious geomagnetic sense connected to vision.

Image: julien Tromeur

The idea that gut bacteria could influence our mood or behavior once sounded absurd, but we now know the gut microbiome communicates with the brain through the vagus nerve and various chemical messengers.

Imbalances in the microbiome have been linked to anxiety, depression, and even neurodegenerative diseases.

Image: Slaapwijsheid.nl

The phenomenon of sleep paralysis was once dismissed by science as mere fantasy, and it didn’t help that in pre-modern times it was often attributed to demonic visitation and other supernatural causes.

Today, it is recognized as a REM sleep disorder in which the brain wakes before the body. Visual and auditory hallucinations are common due to the lingering dream state.

Image: Naomi August

Until recently, consciousness was thought to require a functioning brain. However, recent experiments have revealed brain-like electrical patterns in some simpler organisms**.**

While this raises a plethora of questions about how consciousness emerges in living beings to begin with, it remains a very early field of study where much is still unknown.

Image: Thomas T

Einstein called it "spooky action at a distance," as it seemed too strange to be real. Yet years later, the phenomenon was experimentally confirmed.

We now know that particles can become entangled, so that a change to one instantly affects the other, even across vast distances. This principle underlies quantum computing, a field still in its infancy.

Image: Marco Bianchetti

People have reported feeling pain in amputated limbs since ancient times, but until recently, scientists didn’t know what to make of it, and largely dismissed it as a psychological phenomenon.

Today, neuroscience and brain imaging have confirmed it’s real. The brain retains a sensory map of the missing limb, which can trigger pain. Fortunately, mirror therapy can help retrain the brain to quiet these signals.

Image: Marc Szeglat

Not so long ago, extreme environments such as the deep sea, Antarctic ice, or boiling vents were thought to be lifeless.

However, research has revealed microbes thriving in boiling acid, under immense pressure, and even in radioactive waste. These discoveries have prompted scientists to reconsider the origins of life and its remarkable ability to survive under extreme conditions.

Image: Ryoji Iwata

Large groups of people fainting or convulsing without any apparent medical cause were once hard to make sense of. All sorts of explanations were proposed—rarely rigorous enough to prompt scientific interest.

Today, the phenomenon is recognized as mass psychogenic illness, typically triggered by a combination of stress, anxiety, and suggestion. It has been well documented in schools, factories, and even entire towns under high pressure.

Image: Jackie DiLorenzo

The idea that plants could "talk" was once dismissed as magical thinking or pseudoscience. But time has proven otherwise—botanists now confirm that plants do release chemical signals to warn nearby plants of threats like insect attacks.

Even more remarkably, some plants can even detect and respond to the sound of herbivores chewing nearby.