Over 250 years, the United States has been shaped by people who influenced how it works—and how it feels to live here. This list of 250 American changemakers goes beyond a roll call of the usual icons to also include the quieter architects of everyday life, figures who transformed our rights, our culture and our expectations of what this country can be. The list is designed to explore and debate: Come for the names you know, stay for the discoveries that may change how you see America.
As 650 million watched on TV on July 20, 1969, the Apollo 11 commander took perhaps history’s most famous footstep, becoming the first man on the moon in the Space Race’s crowning moment.
Slide rules. Pencils. Graph paper. The numerical whiz used these low-tech tools in a high-stakes job calculating the precise trajectories of Apollo 11’s moon landing and other NASA missions, overcoming discrimination as a Black woman mathematician.
Rocketing through a glass ceiling into zero gravity, the 32-year-old physicist became the first American woman in space in 1983. She flew twice before turning to science education, encouraging girls to study STEM subjects.
The celebrity astronomer’s gift for communicating scientific wonders and complexities, grounded in skepticism, provoked millions to consider humanity’s place in the universe.
America’s first professional woman astronomer always had her head in the stars. Born in 1818, the avid learner inherited her father’s celestial fascination. On October 1, 1847, she peered through a two-inch telescope and spotted a small blur absent f...
When their experimental biplane took flight on December 17, 1903, so did a new transportation age. Soaring into aviation history, the pioneers developed the first practical, fixed-wing aircraft.
The first female pilot to fly solo across the Atlantic and nonstop across the U.S. vanished on a 1937 circumnavigation in one of history’s greatest mysteries.
The spiritualist and free-love advocate had already opened Wall Street’s first woman-owned brokerage. Then, in 1872, she became the first woman to run for president, campaigning on suffrage and labor reform—decades before women gained the vote.
In 1968, she became the first Black woman elected to Congress, where she fought for food stamps, minimum wage and reproductive rights. She ran for president in 1972.
Elected in 1916 as the first woman in Congress, she championed suffrage, women’s rights, social reform—and as its only member to oppose entry into both World Wars—uncompromising peace.
Elected the first woman chief of the Cherokee Nation in 1985, she nearly tripled enrollment, doubled employment and slashed infant mortality—showing how Indigenous communities could chart their own future.
His revolutionary organic architecture broke the four-walled box with open-plan interiors and “total” designs that harmonized buildings—not only with their natural environment but with every interior detail, down to the dishes.
Dubbed the “Freud of Madison Avenue,” Dichter pioneered motivational research, using psychoanalysis to revolutionize modern advertising by tapping consumers’ hidden desires. Born to a poor Jewish family in Vienna, he had worked as a psychoanalyst bef...
Known as “the father of modern-day skyscrapers,” the Bangladeshi-born engineer invented a tube structural system that enabled buildings to soar to unprecedented heights, safely and efficiently.
With oases like Central Park, he helped define American landscape architecture, making fresh air, beautiful vistas and immersive landscapes accessible to all.
Inspired by a mix of classic Americana and British elite, the Bronx-born son of immigrants reimagined the American dream through fashion—polished, preppy and rooted in aspiration.
“We want to make the best for the most for the least.” The influential mid-century design couple used materials like molded plywood and fiberglass to create affordable, mass-produced furniture—modern design for the middle class.
Bright colors. Two-tone paint. Wraparound windshields. Dramatic tailfins inspired by fighter planes. Harley Earl made style central to the American automobile, helping transform cars from utilitarian machines into symbols of identity and desire, driv...
He made tech fun. The college dropout co-founded Apple, turning computers and smartphones into intuitive, elegant tools where hardware and software worked as one, reshaping how we connect, work and create.
Only a month after his election, southern states began to secede. When negotiations failed, Lincoln led the nation through a war to preserve the Union—and secured emancipation for the country’s enslaved people.
Her meticulous investigative reporting exposed Standard Oil’s ruthless monopoly, fueling the Supreme Court antitrust case that broke up John D. Rockefeller’s vast empire. Her work helped turn muckraking into a force for reform.
He jolted the auto industry with his book Unsafe at Any Speed and ignited the modern consumer protection movement, helping drive federal laws for safer cars, cleaner meat, fairer banking and greater corporate accountability.
Jacobs transformed how Americans understood cities by challenging top-down urban planning and defending the vitality of neighborhoods. Looking out her window above a Greenwich Village candy store, the writer saw what the planners missed: Cities alrea...
As editor, he led The Washington Post to expose Watergate and publish the top-secret Pentagon Papers, reinforcing the power of a free press during pivotal moments in American democracy and challenging presidential power.
Cody turned his exploits as a buffalo hunter and army scout into a traveling spectacle with sharpshooters and staged battles with Native performers, earning worldwide fame and popularizing the myth of the Wild West.
A rearing red sea. Casts of thousands. Costs of millions. DeMille pioneered the Hollywood blockbuster, using groundbreaking special effects to create epic spectacles—and box-office hits.
As NFL commissioner for 29 years, Rozelle reinvented football as America’s top entertainment industry, more than doubling the size of the league, negotiating huge TV contracts and creating cultural rituals like Monday Night Football and the Super Bowl.
After liberating himself from slavery and publishing a bestselling autobiography, he used scorching oratory and sharp political skill to demand abolition and equal rights, insisting that democracy serve all Americans.
She defended Mexican American rights with fearless journalism and activism, confronting violence and discrimination along the Texas border. In 1914, when Texas Rangers arrived to shut down the El Progreso newspaper after her editorial criticized U....
A pioneering scholar-activist—and Harvard’s first Black Ph.D.—he brought rigor to the study of Black life. An NAACP co-founder, he used its magazine to decry Jim Crow inequality and push to criminalize lynching.
She turned education into a path to power for Black Americans, building institutions and shaping national policy. Born to formerly enslaved parents, Bethune taught her family to read and, after college, founded a school for girls that grew into a ful...
Arrested for refusing a WWII order to relocate to an internment camp, California-born Korematsu fought it to the Supreme Court. The Court didn’t rule in his favor but overturned that decision in 2018, declaring it “overruled in the court of history.”
Nearly 20 years before the federal Civil Rights Act banned racial segregation, Peratrovich, an Alaskan Tlingit woman (Native name: Ḵaax̲gal.aat), helped pass the first anti-discrimination law in U.S. history.
As grand president of the Alaska Nativ...
He gave Americans a strategy for nonviolent protest, leading campaigns from Birmingham to Washington to Selma that exposed injustice and forced the nation to confront the gaping disparity between its ideals and reality.
Pound cake. Fried fish. Sweet potato pie. The Montgomery, Alabama-based cook and midwife turned her kitchen into a logistical lifeline for the Civil Rights Movement. After she lost her job for supporting the 1955 boycott against her city’s segregated...
Her experience in an Arkansas internment camp told her she wasn’t fully a citizen in her government’s eyes. As a leader of the Asian American Movement, she allied with Black Power activists and raised her voice to demand redress for Japanese Americans.
He helped launch the modern disability rights movement by demanding access and independence. After polio left him with quadriplegia at 14, his high school wouldn’t graduate him because he hadn’t passed P.E.—but he wouldn’t take no for an answer.
He ...
A key civil rights strategist, she rallied fellow students to protest segregation with lunch counter sit-ins and Freedom Rides, then helped lead the Selma to Montgomery marches that pushed passage of the 1965 Voting Rights Act.
“I felt my legs were praying,” he said after marching beside his friend Martin Luther King Jr. from Selma to Montgomery in 1965 for voting rights. A leading Jewish theologian who barely escaped the Nazis and lost most of his family in the Holocaust, ...
Making disability a civil rights issue, she led activists in the longest occupation of a federal building in U.S. history and pushed through the first comprehensive law mandating accessibility and banning discrimination on the basis of disability.
The naturalist warned of human threats to the environment and championed America’s wilderness, exploring the Sierra Nevadas and documenting its landscape. A Sierra Club founder, he helped spur the creation of America’s natural parks like Yosemite.
The Civil War veteran became a national hero after his daring 1869 expedition through the uncharted Colorado River and Grand Canyon. In an 1878 report, he warned of the West’s scant water sources and urged settlement around watersheds.
Making waves in and out of the pool, the Olympic swimming champion introduced surfing and his native Hawaiian culture to global audiences. He smashed swimming world records with his revolutionary flutter kick, winning three gold and two silver Olympi...
The Black track-and-field superstar won four gold medals at the 1936 Berlin Summer Olympics, puncturing the Nazi myth of Aryan supremacy and challenging racist ideologies on a global stage.
Forget two-sport stars. America’s greatest all-around athlete excelled in baseball, football, lacrosse, boxing and track, even winning a collegiate ballroom dancing title and two Olympic gold medals.
Born on a Sac and Fox reservation in present-day ...
“The Iron Horse” started 2,130 straight games until ALS ended his career. Calling himself “the luckiest man on the face of the earth” in a farewell speech, he turned his personal tragedy into a national lesson on hope, gratitude and grace under pressure.
He stepped across Ebbets Field’s white lines—and baseball’s color line—on April 15, 1947. Enduring taunts from fans, opponents and even teammates, the Hall of Famer integrated the national pastime and helped to spark the Civil Rights Movement.
In and out of the ring, the brash three-time heavyweight boxing champion never pulled a punch. His controversial conversion to Islam, Vietnam draft refusal and civil rights protests redefined athletes as outspoken activists.
Dazzling on the diamond. An all-star humanitarian off it. Puerto Rico’s first Hall of Famer, killed on an earthquake relief mission, inspired future activist athletes with his international charity work and social activism.
Ninety million viewers watched the tennis ace rout Bobby Riggs in the 1973 “Battle of the Sexes.” Off the court, the LGBTQ rights advocate launched a women’s tour and successfully fought for equal prize money.
He was a franchise player not only for the Chicago Bulls but for companies like Nike, McDonald’s and Gatorade. His lucrative endorsements redefined modern athletes as global brands.
Her blend of power, speed and fashion flair transformed women’s tennis. Trained on inner-city public courts, the 23-time Grand Slam winner upended the sport’s country-club image.
Harper became known as the “mother of franchising” by turning hair care into a business women could own. Born into a working-class Canadian family and sent into domestic service at 7, she toiled more than 20 years as a maid before opening an early be...
One of America’s first self-made Black millionaires, she not only developed a hugely successful line of Black haircare products but she created new economic opportunities for other Black women with her nationwide network of sales representatives.
The McDonald’s mastermind turned a single hamburger stand into a global empire by licensing the company’s name and super-efficient production system to franchisees. His focus on quality, uniformity and cleanliness helped make fast food respectable.