Arnold Schoenberg was superstitious about the number 13 and died on Friday, July 13, 1951.

Arnold Schoenberg expanded the confines of music by abandoning traditional chords and embracing dissonance.

Arnold Schoenberg's atonal music influenced generations of musicians who followed.

Arnold Schoenberg's experimentations with dissonance and sound influenced the way films are scored.

Listen to Arnold Schoenberg's Holocaust tribute, 'A Survivor from Warsaw.'

Browse the paintings of Arnold Schoenberg, the classical composer who also explored expressionist painting.

Arnold Schoenberg designed a musical typewriter that transcribed complex compositions with a simple keyboard.

Explore real-life events linked to Friday the 13th

Though no statistics support the idea that Friday the 13th is more unlucky than other dates, the myth persists. See a grim collection of unfortunate events that occurred on the date throughout history.

Fed up with difficult audiences, Arnold Schoenberg started a private concert club that prohibited audible reactions.

Arnold Schoenberg, a pioneer of modern music, and painter Wassily Kandinsky, a pioneer of abstract art, were close friends who inspired one another's work.

A 1980 Oktoberfest bombing killed 13 people

The event was the country's deadliest domestic terror attack since World War II, killing 13 people and injuring more than 200. The perpetrator was 21-year-old Gundolf Koehler, who hoped to use the attack to usher in a conservative chancellor.

Arnold Schoenberg invented a variation of chess that mimicked geopolitics.

Exploring Oskar Schlemmer's 'Triadic Ballet,' a Bauhaus-inspired performance piece

The "symphonic dance of threeness" brought together Bauhaus' varied artistic interests and offered a fable in which collectivism wins. This history and timeline of the work details its origins as well as its near-destruction at the hands of the Nazis, who considered it profane.

'Einstein on the Beach,' often considered a groundbreaking experimental work, is structured like a classical opera.

The tragic history of 'the 27 Club'

Kurt Cobain's 1994 suicide followed an eerie pattern in rock 'n' roll history: Several of the music's brightest stars' lives end at the age of 27. That group includes Kurt Cobain, Jimi Hendrix, Janis Joplin, and Amy Winehouse. This exploration of the phenomenon delves into the eerie and tragic circumstances that continue to shape its relevance.

'Friday the 13th' kicked off a summer camp-themed trend

When it was released in 1980, “Friday the 13th” was panned by critics, but it established a lasting horror trope: the unsafe summer camp. The setting made for a natural fit: vulnerable children exiled from normal society, isolated in the dark woods.

Actress Ingrid Bergman was born on Aug. 29 and died on the same day, 67 years later.

Philip Glass drove a taxi in his 30s and 40s, something he continued even after his critical breakthrough, 'Einstein on the Beach.'

An electric pipe organ in Germany is playing a song for 639 years

Created by composer John Cage, the Halberstadt organ first began playing the piece in September 2001, and has since made only nine chord changes. The device within a medieval church utilizes compressed air to play continuous tones. The next chord change is scheduled for August 2026.

The most bizarre numbers in the universe

Even for math-y types, some numbers are incomprehensible. This article dives into several kinds of numbers more complicated than even irrational numbers with endless decimals like "pi" or Euler's number: Noncomputable numbers. Read the bizarre...

The landmark opera 'Einstein on the Beach' was around 5 hours long with no intermissions, and the audience was encouraged to come and go as they pleased.

Sartre's 1980 funeral attracted a massive crowd

The legendary existentialist died April 15, 1980. A week later, mourners packed the streets of Paris to pay tribute. Estimates suggest that between 20,000 and 50,000 people were in attendance. In the Associated Press footage below, you can watch them following the hearse from the hospital where the thinker died to his resting place in Montparnasse Cemetery.

Superstitious actors believe ‘Macbeth’ is cursed

Actors playing in Shakespeare’s “Macbeth”—a story filled with ghosts, witches, and magic—call it the “Scottish play” out of superstition, a tradition since the play’s first production.

Salvador Dalí idolized Freud but was disappointed after they met

Sigmund Freud's writings on dreams and the unconscious profoundly influenced Dalí and his work, and the artist came to idolize the Austrian psychoanalyst. When they met, Freud viewed Dalí as an odd curiosity, and the artist came away disappointed, significantly lowering his opinion of the psychoanalyst.

Mathematical breakthroughs influenced Shakespeare’s stories

New ideas in math were transforming Europe at the time Shakespeare penned his plays, including newly popular conceptions of zero via philosophers Descartes and Leibniz.

Kierkegaard used pseudonyms throughout his writing

“The Father of Existentialism” published over 40 texts and 40 articles during his life and used several pen names throughout them. The pseudonyms allowed him to present relevant opinions in a relatable, first-person manner without the reader believing that Søren Kierkegaard earnestly held them.

Hitler died by suicide on April 30, 1945

Adolf Hitler, facing imminent defeat as Soviet troops closed in on Berlin, killed himself in a final act of cowardice—by gunshot and cyanide—alongside his wife Eva Braun in his Führerbunker on April 30, 1945. Their bodies were doused in petrol and burned in the Chancellery garden.

Breaking down the music theory of Hitchcock's 'Psycho'

One of the defining features of Hitchcock’s film “Psycho” (1960) is the music, especially the sounds you hear during some particularly grisly scenes. This analysis from The Music Professor analyzes how that music complements the film, highlighting the way strings match the intensity of the film’s screenplay and black-and-white cinematography.

Ludwig van Beethoven suffered from tinnitus

Historical figures that reportedly had the condition include Charles Darwin and Beethoven. Both men wrote letters about the frustrations and pain they experienced from the condition. (Some users may experience a paywall.)

How a competition honoring a king's birthday uncovered history's first chaotic system

A committee established a contest for King Oscar II's 60th birthday, featuring four unsolved problems in mathematics, including one on proving the stability of a system of more than two objects held together by gravity. Focusing on three celestial objects, Henri Poincaré won the prize for his proof, which he later learned was incorrect and, upon correcting it, instead proved these systems to be unstable.

Watch Francis Ford Coppola's debut feature film, the low-budget horror movie 'Dementia 13.'

Watch an interview with Philip Glass about his career and theory of creativity, which he believes needs to be consistently deconstructed and reinvented.

There were dozens of attempts to assassinate Hitler—most famously Operation Valkyrie in July 1944

Across his reign, Hitler survived at least 40 plotted and actual assassination attempts, ranging from lone actors in beer halls to organized military conspiracies. The most notable, Operation Valkyrie on July 20, 1944, led by Colonel Claus von Stauffenberg, planted a bomb at the Wolf’s Lair in an effort to kill Hitler and overthrow the Nazi regime. Though the explosion injured several, Hitler escaped with minor wounds, prompting a brutal purge of conspirators.

Salvador Dalí believed he was his own dead brother.

Dalí's parents found the miracle of his birth nine months after his brother died to be profound, telling him he was his brother's reincarnation. Dalí carried this belief into his adult life and often cited its deep influence on him, including his preoccupation with death and mortality.

German expressionism produced some of horror’s earliest classics

After World War I, German filmmakers turned from reality to the surreal, fusing experimental art with the nascent world of film. Some of the movement’s most notable films, like FW Murnau’s “Nosferatu: A Symphony of Horror” and Robert Wiene’s “The Cabinet of Dr. Caligari,” were intent on frightening their audiences.

A Harvard radio station once dedicated 24 hours to Jandek

The enigmatic singer-songwriter plays atonal dirges that are haunting or horrible, depending on your taste. He has self-released over 120 albums but rarely performs live, preferring to conceal his true identity. In 2003, a Harvard radio station aired the "Jandek Orgy," which included his fans debating his identity, lyrics, and philosophy.

The Surrealists shunned Dalí for his fascination with fascism

Dalí had a fascination with Adolf Hitler and was also a fan of Spanish dictator Francisco Franco. It's unclear how serious Dalí was about it; regardless, his admiration for authoritarians got him expelled by the antiwar and progressive surrealists.

English playwright Christopher Marlowe's violent and mysterious death

According to an official coroner’s report, in 1593 a heated argument over payment for supper escalated into a physical struggle, during which Marlowe wounded a man named Ingram Frizer, who then fatally stabbed Marlowe above the right eye. Though we still don't have a definitive explanation for why Marlowe was killed, the true motive continues to be debated, with suspicions surrounding the official account. Read more here.

Paul McCartney said the Beatles' 'Helter Skelter' was about a playground slide, but Charles Manson said it inspired him to orchestrate 9 murders.

A mescaline-induced hallucination stayed with Jean-Paul Sartre throughout his life

In 1935, Sartre was injected with mescaline, a psychedelic drug that was then used to treat alcoholism and depression, by his friend at the Hôpital Sainte-Anne in Paris. It was not a good trip: Sartre saw nightmarish crabs for days and suffered a mental breakdown. For the rest of his life, crustaceans like the ones he saw during the hallucination appeared in his works.

Why a Nobel Prize winner was awarded 30 years of free beer

Niels Bohr, the Danish physicist who won the Nobel Prize for Physics in 1922, moved into the Carlsberg Honorary Residence in 1932 and was entitled to free delivery of Carlsberg beer for as long as he lived there. He did so until he died in 1962.

Sartre admired American novelist William Faulkner

In addition to writing philosophy and fiction, Jean-Paul Sartre was also a literary critic. His 1939 essay on Faulkner's "The Sound and the Fury" focused on the way the American novelist commented on time, favorably comparing him to Marcel Proust. Ultimately, Sartre argues Faulkner's "despair" about a "closed future" is a result of the "social conditions of our present life." Ever the existentialist, though, Sartre suggests this reality is something that should inspire rather than depress.

The mysterious details of Stalin's death

The 73-year-old dictator of the Soviet Union died March 5, 1953, officially from a stroke, on top of nearly a decade of significant medical issues. But evidence suggests the longtime leader might have been poisoned less than a week before at an intimate gathering of Stalin's closest confidantes and advisors. Explore the current evidence for Stalin's alleged murder here.

JD Salinger, author of 'The Catcher in the Rye,' stopped publishing in 1965, though he continued writing until his death in 2010, with some estimates saying he completed 5 additional books.

Camus died in a car crash, an act some believe was orchestrated by the KGB.

JD Salinger served in World War II while working on a draft of his most famous novel, 'The Catcher in the Rye.'

Stephen King once discontinued his own book, fearing it was inspiring school shootings.

Although not known for horror, a young Tennessee Williams wrote a gothic radio play

The "Streetcar Named Desire" author wrote "The Strangers," a short script, while a student at the University of Iowa in the 1930s. Andrew Gulli, managing editor for the literary magazine that published the unearthed piece, said that it blends classic '30s radio horror with themes Williams would revisit in later, more famous work.

Shirley Jackson is one of horror’s most important writers

The author of 20th-century classics like “The Haunting of Hill House” and “Hangsaman” was a master of domestic horror, though she was often minimized during her life for writing horror. Since her death in 1965, Jackson’s work has proven to be influential to horror and literary writers alike.

The Bauhaus artists who became Nazi collaborators

The Nazis deplored the Bauhaus style, until they found a way to use it for themselves. This deep dive explores the connection between the Nazis and three Bauhaus-affiliated designers—Franz Ehrlich, who was sent to Buchenwald and forced to design the camp's gates (seen below), Fritz Ertl, who designed the shower rooms at Auschwitz, and Herbert Bayer, who helped design Third Reich propaganda.

The term schizophrenia was coined by Swiss psychiatrist Eugen Bleuler in 1908

He launched the word during a lecture at the German Psychiatric Association in Berlin. In his talk he focused on the splitting of psychic functioning as a defining feature of the disease and noted it wasn't associated with dementia or factors like early puberty onset.