The word 'jazz' evolved from slang for 'energy' and was used to describe a baseball pitch before it came to mean a genre of music.

Ragtime was a popular music genre that blended African-American spirituals, European folk songs, and military marches. Blues, brought to New Orleans by free Black people seeking opportunities, allowed musicians to play within basic standards. Jazz combined both forms by merging the syncopated, dance-friendly sounds of ragtime with the soulful, brass-instrumental style of the blues.

Jazz began in 19th-century New Orleans, though its roots go back even further. This timeline situates the music's evolution alongside American and world history, offering an illuminating exploration of the genre.

Hip-hop was born out of obscure samples, including many that were taken from the annals of jazz. That style was especially popular in rap's early eras, with the subgenre "jazz rap" becoming an accurate descriptor for New York groups like A Tribe Called Quest and Gangstarr.

The 1917 song by the Original Dixieland Jass Band was the first jazz recording to be issued and put the New Orleans sound on the national stage, along with inspiring several soundalikes.

When jazz exploded in the 1920s, some believed the music's sudden popularity was the sign of a rotten nation, with one 1920 address at the University of Wisconsin proclaiming, "We are in deadly fear of the Jazz Devil, the demon which is consuming the country." Often, the connections were racialized, with columnists and preachers suggesting that jazz's Black artists were attempting to degrade white America.

The pianist and arranger was one of the genre's biggest names in the early 20th century, though very few believed him when he claimed he had invented the music in 1902. One of his biggest contributions to the genre was a 1938 session with ethnomusicologist Alan Lomax, who recorded nearly 8 hours of music and stories that have become an essential part of the music's history.

As jazz entered the '70s, it was at a crossroads. While the genre's figureheads explored fusion and free jazz, which intentionally flouted mainstream convention, other artists began veering towards pop. Eventually, that sound would be called "smooth jazz."

The essay, delivered in 1956 at the Newport Jazz Festival, offers a poetic take on defining jazz, suggesting that it is the root of both literature and music. “Jazz is a great big sea,” he says. “It washes up all kinds of fish and shells and spume and waves with a steady old beat, or off-beat.”

The large-scale migration of Black Americans looking to escape Jim Crow laws in the South began in 1915 and helped bring New Orleans music to other parts of the country, including Chicago, New York, Kansas City, Detroit, and Los Angeles.

The Great Migration transformed New York City's Harlem neighborhood into the epicenter of Black American art, with artists such as Duke Ellington, Louis Armstrong, and Bessie Smith regularly performing. The music not only provided the backbeat to the cultural scene—it often influenced it, with Harlem Renaissance poets, in particular, inspired by jazz's approach to rhythm and improvisation.

The style is when a musician plays a rhythm on the opposite side of the beat. That means notes are played on the "upbeats," or the spaces between the main beats of a musical bar. The effect is music that can sound unpredictable, even if it's been carefully constructed.

The trumpeter argues that jazz's approach to syncopation is part of an American tradition that offers the unexpected, citing Jonas Salk, Mark Twain, and fusion cuisine as parallels.

Ornette Coleman's 1959 album "The Shape of Jazz to Come" abandoned traditional notions of melody and structure, inadvertently creating "free jazz," a subgenre that embraced absolute musical freedom and gained popularity in the countercultural 1960s.

The city's enslaved people congregated in the city square on Sundays, bringing together the musical traditions of their disparate cultures through drum circles, communal dancing, and call-and-response singing. The rhythmic style that evolved in the area would eventually give rise to ragtime and, subsequently, jazz.

Similar to blues, folk, and country music, jazz relies on a shared tradition of common songs that its artists learn, cover, and rework in their own unique ways. Jazz musicians are often able to easily improvise with other musicians because they share a knowledge of the songs and their languages.

Walt Disney was mesmerized by Al Jolson's "The Jazz Singer" and the way it used synchronized sound, which synced film with audio. He replicated that effect in “Steamboat Willie," producing the first animated film to do so.

Movies changed forever in 1927, when Warner Bros. released "The Jazz Singer," the first feature film with integrated dialogue. Based on a Broadway musical, the movie starred Al Jolson as the son of a Jewish cantor who wants to be a popular singer.

The November 26, 1736 issue of the Virginia Gazette described a fiddling contest for "country" musicians. While the musical style would go by many names over the next two centuries, "country" was the one that eventually stuck.

The jazz style took off in the 1940s, mesmerizing listeners with its wild, improvised solos. It had a particular impact on the writers of the Beat Generation, including Jack Kerouac and Allen Ginsberg, who saw in bebop's freedom a model for what they could achieve through the written word. Beat writers like Lawrence Ferlighetti and Kenneth Rexroth even incorporated live jazz in their poetry readings.

The 1962 album by Stan Getz and Charlie Byrd was an unexpected hit, reaching the top of the Billboard album chart and receiving a Grammy nomination for album of the year. Its lead single, "Desafinado," won the Grammy for best jazz performance and is now considered one of the genre's classic tracks.

For as long as country music has been set to record, its artists have experimented with the genre’s boundaries. Look no further than this track from 1946, Bob Wills’ “Roly Poly.” The song is a classic example of Western swing, a country subgenre that blended country and jazz.

Songs like Billie Holiday's "Strange Fruit," which portrayed the grim brutality of lynching, and John Coltrane's "Alabama," which was modeled on the rhythm of a speech by Martin Luther King Jr., were the backbeat of the movement.

The French philosopher wrote about a 1947 trip to a New York jazz club as a transcendent experience, describing the magic of the relationship between performer and audience: "You shout, they shriek, they whistle, they are possessed, you are possessed."

Although jazz was once a popular art form, it has largely been confined to the margins of pop culture, with many of the genre's current bestselling albums from previous decades. Some critics argue that this is because the music betrayed its position as dance music and focused instead on musical proficiency.

The New Orleans cornetist was a legend in the city, sometimes referred to as "king," for his electrifying performances, which captivated local dance halls by blending ragtime, blues, and gospel music. Unfortunately, recording technology was limited at the time, so there are no recordings of Bolden, though the song "Buddy Bolden's Blues" remains a standard to this day.

The word appeared in 1950's "If I Ran the Zoo," but there are theories that the word (or forms of it) were already part of popular slang before the book was published.

Black players were not permitted on the existing professional basketball teams, but Abe Saperstein—the team's original coach, owner, manager, and sometimes player—leaned into the team's all-Black roster, nodding to New York's historically Black neighborhood even though the team didn't play there until the late 1960s.

The name was coined by Bronx DJ Lovebug Starski, who ad-libbed the term to match the rhythm of a beat while he was rapping. While it began as nonsense, the term went on to describe the music and multifaceted culture that surrounded it.

While jazz musicians are known for their improvisational skills, they rely on years of training and a complex understanding of compositions to inform their improvised solos, using a song's structure and chords to make their in-the-moment choices.

While jazz musicians are known for their improvisational skills, they rely on years of training and a complex understanding of compositions to inform their improvised solos, using a song's structure and chords to make their in-the-moment choices. Although jazz artists could, in theory, play whatever they wanted, musicians often employ common melodic approaches—such as scalar improvisation and arpeggios—to generate solos.

The term was meant to describe the rural people who typically performed the Appalachian folk music. Though Black people were also making country music at the time, their records were categorized as “race music.”

A cornerstone of the budding Black culture following the Civil War was baseball, with several clubs springing up in Black neighborhoods and leaders like Frederick Douglass cheering on the players, including his son, who played for a team in Washington. This detailed history of the early Black leagues unpacks how the game enhanced the upwardly mobile community—and why that fact led to the segregation of what would become Major League Baseball.

At age 32, pitcher James “Pud” Galvin was feeling tired and decided to take "the Brown-Séquard elixir," which contained a testicular fluid from dogs and guinea pigs, believed to invigorate tired bodies. It might've worked: Galvin pitched a two-hit shutout the next day.

The word—at least as a word used to describe fiction—didn’t appear in the Oxford English Dictionary until 1949. Scholars believe that’s due to the arrival of the Magazine of Fantasy and Science Fiction, an influential publication, and the rise in fantasy’s popularity following World War II.

Conceived by artists like Antônio Carlos Jobim in 1950s Rio de Janeiro, the music was seen as a more restrained, slower samba, which was Brazil's popular national music at the time. In addition, bossa nova was popular in the more middle-class, cosmopolitan neighborhoods of Rio de Janeiro and was influenced by American jazz artists like Miles Davis, giving it a more urbane, intellectual air.

The jazz trio, popular in the '20s and '30s, doesn't share much in common with the sounds of the well-known pop-oriented girl groups, but the sisters' prominence in a male-dominated industry provided an early example for later groups. Check out their appearance in the 1932 film "The Big Broadcast," performing the song "Crazy People."

Davis was an adept bebop trumpet player, but he grew tired of the style. With 1959's "Kind of Blue," he pioneered a new style of jazz, called modal jazz, that focused less on improvising on chord progressions and more on open, tone-based expression.

When Creem Magazine's Dave Marsh wrote about seeing '60s garage rockers ? and the Mysterians perform, he remarked it would be unthinkable "to miss such a landmark exposition of punk-rock." The band isn't considered a punk band, but Marsh's description would go on to define other scrappy, back-to-basics acts.