Ever since recorded time, secret societies have fascinated and frightened us. Mystery runs in their veins, making them prime material for conspiracy theorists and students seeking tidy explanations for history’s catastrophes. Yet these clandestine groups truly left their fingerprints on the world, and the echoes of their doctrines and deeds still reverberate today. Welcome to our deep‑dive into the ten most influential secret societies.
10 Secret Societies Overview
10. The Secret Six
Because the takedown of Al Capone was one of the flashiest chapters in American law‑enforcement lore, everyone scrambled to claim credit. From Iowan lawyer George E.Q. Johnson to the dashing G‑man Eliot Ness, each tried to paint themselves as the driving force behind the Chicago mob’s collapse. Yet a low‑key coalition of businessmen kept their anti‑Capone crusade under wraps. Known as the Secret Six, they were a cadre of Chicago investors who wanted a cleaner city for pure economic gain—after all, a gangster‑ridden Chicago scared tourists away.
Formed in October 1930 as the Citizens’ Committee for the Prevention and Punishment of Crime, the Secret Six counted federal agent Alexander Jamie—Ness’s brother‑in‑law and staunch ally—among its ranks. With Jamie’s endorsement, a relatively untested Ness was handed the reins of the case that aimed to nail Capone on Prohibition‑related violations of the Volstead Act.
Following his triumph in Chicago, Ness carried the Secret Six concept to Cleveland, deploying the same covert strategy to combat organized crime there.
9. Secret Germany
Interwar Germany simmered with unrest. Burdened by a sluggish economy and shackled by the punitive Versailles Treaty that blamed Germany for igniting World War I, the Weimar Republic’s citizens vented their fury through politics. While communists, nationalists, and centrists clashed in the streets, a quieter circle gathered in pubs to discuss philosophy. This enclave, loosely dubbed Secret Germany, rallied around poet‑messiah Stefan George.
George, affectionately called “The Master” by his disciples, crafted some of the German language’s finest poetry (1868‑1933) and authored The New Empire, outlining a “spiritual aristocracy” that updated the enlightened‑despot ideal. His vision of war‑hungry, transcendental dictators blended political ambition with mystic aspiration.
Although the Nazis later co‑opted portions of George’s work, many members of Secret Germany turned into key figures of the German Resistance, most famously Claus von Stauffenberg, the officer who attempted to assassinate Hitler on July 20, 1944.
8. The UR Group
When most think of fascism, images of brown‑shirted Nazis marching through Berlin flood the mind, yet the ideology first sprouted in Italy during the early 1920s. Before it coalesced into a political movement, fascism was a fragmented debate among right‑wing intellectuals. One such figure was Julius Evola, a Sicilian nobleman, occultist, and student of esotericism, who saw fascism as a reactionary antidote to the modern world—what he called the Hindu Dark Age, or Kali Yuga.
To embody his brand of mystical fascism, Evola founded the UR Group in 1927. This society gathered Italian thinkers devoted to magic, Nietzsche’s “will to power,” and Hermeticism. Because Evola’s ideas were elitist and anti‑modern, the UR Group attracted few followers, even within Mussolini’s National Fascist Party. Nonetheless, despite Evola’s critiques of Mussolini, the UR Group remained an intellectual pillar of right‑wing radicalism throughout World War II and continues to influence certain far‑right circles today.
7. Galleanists
Terrorism isn’t a 21st‑century invention; the United States had already grappled with it long before September 11. In the early 1900s, the U.S. and Europe fought a “First War on Terror” aimed at curbing communists, socialists, and anarchists who challenged capitalism. While many radicals settled for strikes, a faction embraced “propaganda of the deed”—a doctrine championed by illegalist anarchism that glorified violent action.
Italian anarchist Luigi Galleani’s followers, known as the Galleanists, headquartered in Boston, carried out a string of bombings across the United States during the 1919 “Red Summer.” One member is also suspected of the still‑unsolved Wall Street bombing of 1920, cementing their reputation as a dangerous, clandestine force.
6. The Bonnet Gang
Unlike many entries on this list, the Bonnet Gang straddles the line between secret society and outright criminal enterprise. Operating in France between 1911 and 1912, the group—also called the “Auto Bandits”—made history as the first outfit to employ a getaway car after a daring robbery of a Société Générale branch in Paris.
Their arsenal was ahead of its time, featuring semi‑automatic pistols and repeating rifles. Led by Jules Bonnot, the flamboyant “Demon Chauffeur,” the gang also courted the press, marching into the offices of La Petit Parisien for a self‑serving interview.
Driven by the illegalist philosophy, the Bonnet Gang’s crusade against capitalism ended by spring 1912: after a series of gun battles that even involved the French army, most members were dead or imprisoned. Their legacy, however, may have inspired the silent‑film series Les Vampires, which portrayed a shadowy criminal cabal.
5. Young Bosnia
Before the Balkan wars of the 1990s, the region was already a powder keg of ethnic and religious tension. Bosnia, a mosaic of Serbs, Croats, and Muslims, sat at the crossroads of great‑power ambitions. After Austria‑Hungary’s 1878 occupation, nationalist fervor surged, especially as the Serbian “Black Hand” funded pro‑Serbian and pan‑Slav movements.
One such group, Young Bosnia, assembled a heterogeneous mix of Bosnian Serb, Croat, and Muslim revolutionaries. Inspired by the writings of Vladimir Gacinovic and working alongside the Black Hand, they sought to throw off Austrian rule. Their most infamous act came when member Gavrilo Princip assassinated Archduke Franz Ferdinand and his wife Sophie, an event that sparked World War I.
4. The Guido Von List Society
Before the Nazis seized power, Imperial Austria served as a hotbed where racial nationalism, occultism, and anti‑Semitism collided. Guido von List, a Viennese journalist, poet, and occult enthusiast, devoted himself to the study of ancient runes used by pre‑Christian Germanic peoples.
Although List was something of a charlatan who self‑styled “von,” his brand of esoteric Austro‑German nationalism—known as Ariosophy—quickly attracted Vienna’s elite. Founded in 1905, the Guido von List Society counted industrialist Friedrich Wannieck, anti‑Semite Karl Lueger (leader of the Christian Social Party), and even the mayor of Vienna among its members. The group adopted symbols like the swastika and a distinctive Heil salute, sowing seeds that later blossomed into National Socialism’s theatricality and iconography.
3. Thuggees
Derived from a Sanskrit term meaning “concealment,” the Thuggees of India gave English the word “thug.” Far more sinister than ordinary highwaymen, these cultic murderers masqueraded as pilgrims, preying on unsuspecting travelers across the subcontinent.
British administrators in the early 19th century uncovered mass graves where victims lay strangled with a yellow sash called a rumal, a ritual sacrifice to the goddess Kali. Unlike European bandits who killed for profit, the Thuggees acted as religious zealots, offering each murder as a bloodless offering. Their reign ended only after Lord William Bentinck, the governor‑general of India, orchestrated a massive crackdown that imprisoned thousands.
2. The Cathars
During the 13th century, the Albigensian Crusade—led by Pope Innocent III—sought to eradicate the Cathars, a heretical Christian sect thriving in the mountains of southern France. The Cathars adhered to Dualism, believing in a good god and an evil god, and drew inspiration from earlier movements like Bogomilism and Manichaeism.
Rejecting the Roman Catholic Church’s hierarchy, they refused to worship in cathedrals and championed gender equality, allowing women to hold important religious roles. The crusade ultimately crushed the Cathars; by 1229, survivors either converted under Inquisition pressure or fled underground. Centuries later, conspiracy theorists romanticized the Cathars as Guardians of the Holy Grail.
1. The Eleusinian Mysteries
The Sacred Way, stretching from Athens to the holy city of Eleusis, earned fame as the best‑maintained road in ancient Greece. Its pristine condition owed to the annual pilgrimage of initiates to the Eleusinian Mysteries, a secretive religious ceremony retelling Demeter’s loss of her daughter Persephone to Hades.
Details of the rites remain scarce because participants who spoke of them were often silenced by fellow initiates. While modern imagination paints the mysteries as an orgiastic affair involving psychoactive drinks like kykeon, the ceremonies endured almost two millennia, arguably representing the pinnacle of ancient Greek spirituality.
Benjamin Welton, a freelance journalist based in New England, has contributed to The Atlantic, Crime Factory, The Airship Daily, and The Classical. He currently blogs at literarytrebuchet.blogspot.com.