It was born in the break, all those decades ago — that moment when a song’s vocals dropped, instruments quieted down and the beat took the stage. It was then that hip-hop came into the world, taking the moment and reinventing it. Something new, coming out of something familiar.

At the hands of the DJs playing the albums, that break moment became something more: a composition in itself, repeated in an endless loop, back and forth between the turntables. The MCs got in on it, speaking their own clever rhymes and wordplay over it. So did the dancers, the b-boys and b-girls who hit the floor to breakdance. It took on its own visual style, with graffiti artists bringing it to the streets and subways of New York City.

It didn’t stay there, of course. A musical form, a culture, with reinvention as its very DNA would never, could never. Hip-hop spread, from the parties to the parks, through New York City’s boroughs and then the region, around the country and the world.

And at each step: change, adaptation, as new, different voices came in and made it their own, in sound, in lyric, in purpose, in style. Its foundations steeped in the Black communities where it first made itself known and also spreading out and expanding, like ripples in water, until there’s no corner of the world that hasn’t been touched by it.

Not only being reinvented, but reinventing. Art, culture, fashion, community, social justice, politics, sports, business: Hip-hop has impacted them all, transforming even as it has been transformed.

In hip-hop, “when someone does it, then that’s how it’s done. When someone does something different, then that’s a new way,” said Babatunde Akinboboye, a Nigerian-American opera singer and longtime hip-hop fan in Los Angeles who creates content on social media using both musical styles.

Hip-hop “connects to what is true. And what is true, lasts.”

How it all began

Those looking for a hip-hop starting point have landed on one, turning this year into a 50th-birthday celebration. Aug. 11, 1973, was the date a young Clive Campbell, known as DJ Kool Herc around his Bronx stomping grounds, deejayed a back-to-school party for his younger sister in the community room of an apartment building on Sedgwick Avenue.

Campbell, who was born and spent his early years in Jamaica before his family moved to the Bronx, was still a teen himself at that time, just 18, when he began extending the musical breaks of the records he was playing to create a different kind of dancing opportunity. He’d started speaking over the beat, reminiscent of the “toasting” style heard in Jamaica.

It wasn’t long before the style could be heard all over the city — and began to spread around the New York City metro region.

Among those who started to hear about it were some young men across the river in Englewood, New Jersey, who started making up rhymes to go along with the beats. In 1979, they auditioned as rappers for Sylvia Robinson, a singer-turned-music producer who co-founded Sugar Hill Records.

As the Sugarhill Gang, they put out “Rapper’s Delight” and introduced the country to a record that would reach as high as 36 on Billboard’s Top 100 chart list and even make it to No. 1 in some European countries.

“Now what you hear is not a test: I’m rappin’ to the beat/And me, the groove, and my friends are gonna try to move your feet,” Michael “Wonder Mike” Wright said in one of the song’s stanzas.

Wright said he had no doubt the song — and, by extension, hip-hop — was “going to be big.”

“I knew it was going to blow up and play all over the world because it was a new genre of music,” he told The Associated Press. “You had classical jazz, bebop, rock, pop, and here comes a new form of music that didn’t exist.”

And it was one based in self-expression, said Guy “Master Gee” O’Brien. “If you couldn’t sing or you couldn’t play an instrument, you could recite poetry and speak your mind. And so it became accessible to the everyman.”

And everywomen, too. Female voices took their chances on the microphone and dance floors as well, artists like Roxanne Shante, a native of New York City’s Queens borough who was only 14 years old in 1984. That was the year she became one of the first female MCs, those rhyming over the beat, to gain a wider audience — and was part of what was likely the first well-known instance of rappers using their song tracks to take sonic shots at other rappers, in a back-and-forth song battle known as the Roxanne Wars.

“When I look at my female rappers of today, I see hope and inspiration,” Shante said. “When you look at some of your female rappers today and you see the businesses that they own and the barriers that they were able to break it down, it’s amazing to me and it’s an honor for me to even be a part of that from the beginning.”

Plenty of other women have joined her over the intervening decades, from Queen Latifah to Lil’ Kim to Nicki Minaj to Megan Thee Stallion and more, speaking on their experiences as women in hip-hop and the larger world. That doesn’t even begin to touch the list of women rappers hailing from other countries.

They’re women like Tkay Maidza, born in Zimbabwe and raised in Australia, a songwriter and rapper in the early part of her career. She’s thrilled with the diverse female company she’s keeping in hip-hop, and with the variety of subjects they’re talking about.

“There’s so many different pockets … so many ways to exist,” she said. “It’s not about what other people have done. … You can always recreate the blueprint.”

Speaking out about injustice

The emphasis on self-expression has also meant that over the years, hip-hop has been used as a medium for just about everything.

Want to talk about a party or how awesome and rich you are? Go for it. A cute guy or beautiful girl catch your eye? Say it in a verse. Looking to take that sound coming out of New York City and adapt it to a West Coast vibe, or a Chicago beat, a New Orleans groove, or an Atlanta rhythm, or these days, sounds in Egypt, India, Australia, Nigeria? It’s all you, and it’s all hip-hop. (Now whether anyone listening thought it was actually any good? That was a different story.)

Mainstream America hasn’t always been ready for it. The sexually explicit content from Miami’s 2 Live Crew made their 1989 album “As Nasty As They Want To Be” the subject of a legal battle over obscenity and freedom of expression; a later album, “Banned in the USA,” became the first to get an official record industry label about explicit content.

Coming from America’s Black communities, that has also meant hip-hop has been a tool to speak out against injustice, like in 1982 when Grandmaster Flash and the Furious Five told the world in “The Message” that the stresses of poverty in their city neighborhoods made it feel “like a jungle sometimes/It makes me wonder how I keep from goin’ under.”

Other figures like Common and Kendrick Lamar have also turned to a conscious lyricism in their hip-hop, with perhaps none better known than Public Enemy, whose “Fight the Power” became an anthem when it was created for filmmaker Spike Lee’s 1989 classic “Do the Right Thing,” which chronicled racial tension in a Brooklyn neighborhood.

Some in hip-hop pulled no punches, using the art form and the culture as a no-holds-barred way of showcasing the troubles of their lives. Often those messages have been met with fear or disdain in the mainstream. When N.W.A. came “Straight Outta Compton” in 1988 with loud, brash tales of police abuse and gang life, radio stations recoiled.

Hip-hop (mainly that done by Black artists) and law enforcement have had a contentious relationship over the years, each eyeing the other with suspicion. There’s been cause for some of it. In some forms of hip-hop, the ties between rappers and criminal figures were real, and the violence that spiraled out, as in high-profile deaths like that of Tupac Shakur in 1996 and the Notorious B.I.G. in 1997, sometimes got very bloody. But in a country where Black people are often looked at with suspicion by authority, there have also been plenty of stereotypes about hip-hop and criminality.

As hip-hop spread over the years, a host of voices have used it to speak out on the issues that are dear to them. Look at Bobby Sanchez, a Peruvian-American transgender, two-spirit poet and rapper who has released a song in Quechua, the language of the Wari people that her father came from. “Quechua 101 Land Back Please” references the killing of Indigenous peoples and calls for land restoration.

“I think it’s very special and cool when artists use it to reflect society because it makes it bigger than just them,” Sanchez said. “To me, it’s always political, really, no matter what you’re talking about, because hip-hop, in a way, is a form of resistance.”

A worldwide phenomenon

Yes, it’s an American creation. And yes, it’s still heavily influenced by what’s happening in the United States. But hip-hop has found homes all over the planet, turned to by people in every community under the sun to express what matters to them.

When hip-hop first started being absorbed outside of the United States, it was often with a mimicking of American styles and messages, said P. Khalil Saucier, who has studied the spread of hip-hop across the countries of Africa.

That’s not the case these days. Homegrown hip-hop can be found everywhere, a prime example of the genre’s penchant for staying relevant and vital by being reinvented by the people doing it.

“The culture as a whole has kind of really rooted itself because it’s been able to now transform itself from simply an importation, if you will, to now really being local in its multiple manifestations, regardless of what country you’re looking at,” said Saucier, a professor of critical Black studies at Bucknell University in Pennsylvania.

That’s to everyone’s benefit, said Rishma Dhaliwal, founder of London’s I Am Hip-Hop magazine.

“Hip-hop is … allowing you in someone’s world. It’s allowing you into someone’s struggles,” she said. “It’s a big microphone to say, `Well, the streets say this is what is going on here and this is what you might not know about us. This is how we feel, and this is who we are.’ ”

The impact hasn’t just been in one direction. Hip-hop hasn’t just been changed; it has made change. It has gone into other spaces and made them different. It strutted through the fashion world as it brought its own sensibility to streetwear. It has revitalized companies; just ask Timberland what sales were like before its workboots became de rigueur hip-hop wear.

Or look at perhaps the perfect example: “Hamilton,” Lin Manuel Miranda’s groundbreaking musical about a distant white historical figure that came to life in the rhythms of its hip-hop soundtrack, bringing a different energy and audience to the theater world.

Hip-hop “has done a very good job at making culture more accessible. It has broken into spaces that we’re traditionally not allowed to break into,” Dhaliwal said.

For Usha Jey, freestyling hip-hop was the perfect thing to mix with the classical, formal South Asian dance style of Bharatnatyam. The 26-year-old choreographer, born in France to Tamil immigrant parents, created a series of social media videos last year showing the two styles interacting with each other. It was her training in hip-hop that gave her the confidence and spirit to do something different.

Hip-hop culture “pushes you to be you,” Jey said. “I feel like in the pursuit of finding yourself, hip-hop helps me because that culture says, you’ve got to be you.”

Hip-hop is, simply, “a magical art form,” said Nile Rodgers, legendary musician, composer and record producer. He would know. It was his song “Good Times,” with the band Chic, that was recreated to form the basis for “Rapper’s Delight” all those years ago.

“The impact that it’s had on the world, it really can’t be quantified,” Rodgers said. “You can find someone in a village that you’ve never been to, a country that you’ve never been to, and all of a sudden you hear its own local hip-hop. And you don’t even know who these people are, but they’ve adopted it and have made it their own.”