1

Fast food chains

The U.S. pioneered large-scale fast food chains like McDonald’s, Burger King, and Wendy’s, especially after World War II. These restaurants focused on speed, consistency, and low prices .

Their standardized menus and assembly-line kitchens made quick meals widely accessible. The model spread globally, shaping modern eating habits.

2

Drive-Thru restaurants

The drive-thru concept took off in the U.S. in the 1940s, with chains like In-N-Out and later McDonald’s making it national. It allowed diners to order food without leaving their cars .

This idea dovetailed perfectly with a growing car culture and suburban life in the aftermath of WWII. Today, drive-thrus are common worldwide, but their roots lie in mid-century America.

3

Credit cards

While earlier charge systems existed, modern credit cards became widely used in the U.S. in the 1950s with Diners Club and BankAmericard (later Visa).

They allowed consumers to buy now and pay later , transforming spending habits. This system became a global standard, making everyday purchases faster and more flexible.

4

Online shopping

Modern online shopping began in the U.S. during the 1990s, with now-ubiquitous companies like Amazon leading the way. Consumers could browse and buy products without visiting a store .

This shifted retail forever, offering convenience, home delivery, and endless variety. Today’s global e-commerce industry grew from these early American platforms.

5

Self-service gas stations

Self-service gas stations became popular in the U.S. in the 1960s and 70s, allowing drivers to pump their own fuel instead of relying on attendants .

This reduced costs and sped up service, appealing to busy motorists. Over time, it became the standard in most parts of the world.

6

Supermarkets with one-stop shopping

The first true supermarkets appeared in the U.S. in the 1930s, offering a wide range of goods, from fresh meat and produce to dry goods to cleaning and personal care products, under one roof . King Kullen in New York is often cited as an early example of this.

These mega-stores replaced smaller specialty shops and made grocery shopping easier. The concept became a global standard for food retail.

7

Shopping malls

Indoor shopping malls emerged in the U.S. in the mid-20th century, designed as climate-controlled spaces with multiple stores in one location , beginning with Southdale Center, which opened in Edina, Minnesota, in 1956.

They became social hubs as well as retail centers. The mall concept spread worldwide, especially in suburban areas.

8

Frozen TV dinners

TV dinners were introduced in the U.S. in the 1950s, notably by Swanson. These frozen meals were designed to be heated quickly and eaten while watching television, hence the term "TV dinner."

They reflected changing lifestyles in which convenience and entertainment overlapped. Frozen meals later became a global staple, especially with the advent of microwave ovens, which became increasingly popular in the 1970s and 80s.

9

Automatic dishwashers

Dishwashers existed earlier, but automatic home models became widely adopted in the U.S. during the mid-20th century, making their way into American homes in the 1950s and 60s.

They saved time and reduced household labor, especially in busy families . Today, they are a common appliance in many parts of the world.

10

Sink garbage disposals

The garbage disposal system was invented in the U.S. in the 1920s and became popular in American homes after World War II. It grinds food waste directly in the sink .

This innovation simplified kitchen cleanup and reduced trash volume. It remains especially common in U.S. households.

11

Vending machines

Modern vending machines became widespread in the U.S. during the 1950s and 60s, offering snacks and beverages in public places.

They provided quick, unattended service at any hour . While now global, their large-scale use and variety were strongly shaped by American consumer culture.

12

Ride-sharing apps

Ride-sharing apps like Uber and Lyft began in the late 2000s, using smartphones to connect passengers with drivers instantly .

They transformed urban transportation, offering flexible alternatives to taxis. This model has since expanded to cities around the world.

1

Ella Fitzgerald and Marilyn Monroe

Image: William P. Gottlieb, Public domain, via Wikimedia Commons

Strange as it may sound, Ella Fitzgerald and Marilyn Monroe developed a beautiful friendship in the 1950s. Hollywood's favorite blonde was a big fan of Fitzgerald's music and went to see her perform in Los Angeles in 1954. When they met in person they became inseparable.

Monroe helped her land a gig at the famous Mocambo nightclub in Los Angeles, which had previously turned Fitzgerald down. These performances were a turning point in the career of the Queen of Jazz. Marilyn used to say that Ella was her favorite person and that she loved her as a person and as a singer. They remained friends until Monroe's death at the age of 36.

2

Thomas Jefferson and John Adams

Image: Tholey, A. (Augustus), artist, Public domain, via Wikimedia Commons

John Adams and Thomas Jefferson are perhaps America's most famous pair of "frenemies". Their historic relationship began in 1775. Despite their very different political views, the two Founding Fathers maintained an on-and-off relationship for five decades, tinged by a mixture of mutual respect and contempt.

Their relationship began to crack when George Washington decided not to run for a third term, and Adams and Jefferson had to compete for the presidency. They stopped speaking to each other for 12 years, but finally, in 1812, they resumed contact. Perhaps as proof of their troubled but strong friendship, John Adams and Thomas Jefferson died just a few hours apart on July 4, 1826, the 50th anniversary of the adoption of the Declaration of Independence.

3

Groucho Marx and T.S. Eliot

Image: Flybynight

One was a comedian of the absurd, the other a melancholic poet and Nobel laureate. Believe it or not, Groucho Marx and T.S. Eliot were friends and admired each other. In 1961, Eliot wrote to Marx, telling him he was a fan and asking for an autographed photo. Marx agreed to the request and asked the same of Eliot. For the next three years, the two became pen pals, exchanging many letters.

According to Groucho Marx, they shared three things: an affection for good cigars, a love of cats, and a weakness for puns. However, when they finally met in person in 1964 they realized that they didn’t have that much in common after all and their relationship started to fade.

4

Ulysses S. Grant and James Longstreet

Image: Mathew Benjamin Brady, Public domain, via Wikimedia Commons

Ulysses S. Grant was the commander of the Union Army during the Civil War. James Longstreet, on the other hand, fought for the Confederate Army and became one of General Robert E. Lee's most trusted officers. That should make them enemies, right? Well, not exactly.

Grant and Longstreet became friends as young officers in the US Army and served together in the Mexican-American War. Years later they went their separate ways but were reunited after the Confederate surrender at Appomattox Court House. In fact, it was Longstreet who convinced General Lee to surrender, knowing that Grant would offer him generous terms. As soon as Grant saw Longstreet, he shook his hand warmly and asked him to play a game of cards for old time's sake.

5

Susan B. Anthony and Elizabeth Cady Stanton

Image: DawesDigital, CC0, via Wikimedia Commons

Susan B. Anthony is known for having been a tireless activist who dedicated most of her 86 years to achieving women's suffrage. In 1851, Anthony met suffragist Elizabeth Cady Stanton, with whom she developed a lifelong friendship. Together they launched a national women's suffrage movement, published a newspaper called The Revolution , and gave many lectures.

Stanton died in 1902 and Anthony in 1906. It was not until 1920 that women were allowed to vote legally for the first time in U.S. federal elections, yet the legacy of these two friends was certainly invaluable.

6

Mark Twain and Nikola Tesla

Image: Marija Zaric

Can a literary genius and a giant of science become good friends? In the case of Mark Twain and Nikola Tesla, the answer is definitely yes. Although the professions of writer and inventor seem very different, they actually have something very strong in common: creativity.

Tesla, who had been bedridden for nine months because of cholera, found in Twain's work a refuge that made him completely forget his state of despair. Meanwhile, Twain was fascinated by technological innovations and, in particular, by electricity. When the two men finally met in the 1890s, they became close friends. Over the years they maintained an assiduous correspondence and supported each other both professionally and personally.

7

Bill Gates and Warren Buffett

Image: ENERGY.GOV, Public domain, via Wikimedia Commons

Bill Gates and Warren Buffett, two of the richest men in the United States, have been friends for more than 30 years. They met in 1991 at a Fourth of July celebration, and although they thought they had nothing in common, they spent 11 hours discussing business and philanthropy.

Bill and Warren played ping-pong together, traveled the world for business and pleasure, and shared several initiatives to encourage billionaires to invest their money in social and charitable endeavors. The creator of Microsoft also claims that Warren Buffett's advice and business vision were indispensable for the growth of his company.

8

Mary Todd Lincoln and Elizabeth Keckley

Image: National Archives at College Park, Public domain, via Wikimedia Commons

In the 1860s, Elizabeth Keckley, a former slave who had managed to buy her freedom and start a sewing business, landed an important position in the White House as Mrs. Mary Todd Lincoln's personal dressmaker. Despite their different upbringings, the two women developed a close relationship. In fact, the first lady came to describe her as her best friend.

Over the years Keckley became a confidant of Mrs. Lincoln; the two women traveled and worked together to raise money for the war effort. Unfortunately, their friendship ended when Keckley published her memoirs in 1868. Keckley had wanted the book to celebrate Mrs. Lincoln's legacy, but the First Lady felt betrayed as it revealed some private conversations.

9

Dwight D. Eisenhower and Bob Hope

Image: NBC Television, Public domain, via Wikimedia Commons

Throughout his long career, comedian Bob Hope was a frequent White House visitor who had the honor of entertaining 11 different commanders-in-chief. In fact, he considered them the best possible audience. But of all the presidents who laughed at his jokes, Dwight D. Eisenhower was the one with whom he formed the most enduring relationship.

They met in Algeria in 1943 when Eisenhower was a General for the U.S. Army and Hope was performing at a United Service Organization show. They immediately hit it off. Even when Ike became president 10 years later their friendship continued. They often exchanged letters and played golf together.

10

Ben Affleck and Matt Damon

Image: Bill Ingalls, Public domain, via Wikimedia Commons

Matt Damon and Ben Affleck met in the 1980s in Cambridge, Massachusetts when they were still young children. They bonded over their passion for basketball and acting, and have been friends ever since. In fact, while in high school, they often traveled together to audition.

Damon and Affleck's partnership is arguably one of the most successful in Hollywood. They not only acted in movies together several times, but they also co-wrote the screenplay for Good Will Hunting , which earned them an Academy Award for Best Original Screenplay in 1997.

11

Truman Capote and Barbara "Babe" Paley

Image: Eric Koch for Anefo, CC0, via Wikimedia Commons

Another controversial friendship was that of author Truman Capote and New York socialite Barbara "Babe" Paley. This odd couple met in the late 1960s after Capote published In Cold Blood and became something of a celebrity. They quickly became close friends and confidants.

However, when in 1975 Capote published a preview of his forthcoming book Answered Prayers in Esquire magazine airing some of his friend’s secrets, their relationship was forever ruined. Although the writer admired Babe and considered her perfect, he could not resist the temptation to betray her.

12

John F. Kennedy and Frank Sinatra

Image: FotoshopTofs

No one knows exactly when and how they met, but it is not surprising that US President John F. Kennedy and music legend Frank Sinatra were friends. In addition to their mutual admiration, their relationship was beneficial to both. Sinatra gained access to the halls of power, while Kennedy relied on The Voice's charm and popularity to win votes in the 1960 presidential election.

When Kennedy won, the president-elect publicly thanked Sinatra for his campaign efforts. Unfortunately, the friendship fell apart after JFK entered the White House. According to lore, First Lady Jackie Kennedy didn't like the singer. And, let's be honest, Sinatra's alleged connections to organized crime weren't a good look for a head of state anyway.

1

Yale

Image: Pixabay

One of America’s most illustrious universities, Yale has been creating stories and forging traditions for more than three centuries. Being one of the oldest universities in the country means you can claim a couple of "oldest". For example, Yale is home to the earliest collegiate daily newspaper still in existence. The Yale Daily News has been around since 1878, reporting consistently five days a week. Also, the Whiffenpoofs, Yale’s oldest a capella group, has been singing every Monday night since 1909 .

Another fun fact? They may not teach magic at Yale, but theuniversity’s residential college system is very similar to the Hogwarts house system portrayed in the famous Harry Potter series . Each year, Yale freshmen are treated to a formal holiday banquet at one of the 17 extravagant Gothic dining halls on campus.

2

Stanford

Image: Jason Leung

The campus of Stanford University spans 8,180 acres in the center of the San Francisco Peninsula. It includes 630 buildings, 49 miles of roads, 3 dams, more than 40,000 trees , 25 fountains, a biological preserve, and a historic equestrian barn, among many other special features. It’s so big that it even has its own special zip code!

Perhaps one of the most relevant facts about Stanford is that it is considered the birthplace of Silicon Valley . In the 1930s, the university's Dean of Engineering, Frederick Terman, encouraged his students to stay in the area to develop a high-tech hub. This is how Bill Hewlett and David Packard ended up creating Hewlett-Packard in a garage in Palo Alto not far from campus.

3

MIT

Image: Ana GG

The Massachusetts Institute of Technology was founded on April 10, 1861, just two days before the start of the Civil War. MIT’s official colors are Cardinal Red and Silver Gray and, in 1914, the beaver was chosen as the university’s formal mascot due to its "engineering and mechanical skill and habits of industry."

This distinguished university currently counts 98 Nobel Laureates among its alumni, faculty, and staff. But the nerdy ways of the MIT crowd don't end there.Did you know that acceptance letters for undergraduates are sent out every March 14, in commemoration of Pi Day? Admissions are even delivered at exactly 6.28 pm, which is known as "Tau time" (πx2). No wonder MIT’s motto is mens et manus , Latin for "mind and hand".

4

UCLA

Image: tommao wang

The University of California is synonymous with excellence and innovation, but there are a lot of tidbits about it that even graduates don’t know about. UCLA’s football team has had many nicknames over the years : they were known as the "Cubs", the "Grizzlies", and finally the "Bruins". A live bear even used to take the field at some games until it was banned!

UCLA was also home to some of America’s most prominent cultural icons : James Dean majored in drama, Francis Ford Coppola earned a Master of Fine Arts in Film, NASA astronaut and first mother in space, Anna Lee Fisher, graduated as a doctor and mastered in chemistry, and neuroscientist Dr. Mayim Bialik popularised this field of science with her character in the famous TV series The Big Bang Theory . Can you name any other stars who went to UCLA?

5

Brown

Image: Keming Tan

Founded in 1764, Brown is a leading American research university, the first Ivy League school to accept students from all religious affiliations . Located in Providence, Rhode Island, this school has a bear mascot named Bruno and a library with no windows that resembles a tomb —in fact, rumor has it, that Rush and Annmary Brown Hawkins are buried here. Another one of its libraries, The John Carter Brown Library, holds an invaluable treasure: seven 15th-century letters from Christopher Columbus proclaiming his "discovery" of the Americas.

But perhaps Brown’s most curious feature is Carberry Day. Every Friday the 13th, students celebrate Josiah S. Carberry, a legendary fictional professor of "psychoceramics" who was created as a joke in 1929. Since then, every Carberry Day all students and faculty spread the campus with brown jugs filled with change they donate to the professor and his ‘future late wife Laura’. Have you ever heard of this traditional Brunonian holiday?

6

Johns Hopkins

Image: Falkenpost

This university named after the 18th-century Quaker entrepreneur and philanthropist Johns Hopkins was the first research university established in the United States . Johns Hopkins has a long and fascinating history, including mutant rabbit-related mysteries and famous alums: President Woodrow Wilson, Wolf Blitzer, Mike Bloomberg, Tori Amos, and Wes Craven, just to name a few.

Johns Hopkins is also home to some important events in literary history . In 1932, Zelda Fitzgerald was admitted to the university’s hospital and treated for schizophrenia. Soon after, F. Scott Fitzgerald, moved across the street to be closer to his wife. While in Baltimore, they wrote two novels: Save Me the Waltz and Tender is the Night .

7

UPenn

Image: Dyana Wing So

"Here’s a toast to dear old Penn", sing students at the University of Pennsylvania during home football games. Originating in the prohibition years, this tradition of throwing pieces of toast on the field seems to have taken the expression rather literally. Another popular myth at UPenn indicates that freshmen should never cross the compass embedded into the center of Locust Walk if they don't want to risk failing their first exams.

But serious things also happen at this legendary Philadelphia university. For example, it was founded by none other than Benjamin Franklin , the first general-purpose electronic computer was created here in 1946, has 38 Nobel laureates, and many other prominent Americans attended the school, such as Noam Chomsky, Ezra Pound, Warren Buffett, Tory Burch, and John Legend.

8

Caltech

Image: LisetteBrodey

Since its founding in 1891, the California Institute Of Technology has made significant contributions in various scientific fields. It has produced 39 Nobel Laureates and operates the world’s largest optical telescope , located at the Palomar Observatory. Caltech’s most popular major is Computer Science and it also has numerous groundbreaking space-related discoveries under its belt —as a matter of fact, the campus is home to NASA’s Jet Propulsion Laboratory.

While academic excellence is what makes Caltech unique, they also have some quirky traditions. For example, pranks are common practice, often involving rivalries between student houses , especially during Halloween. And it's not all about using their brains, Caltech students put their bodies to work as well. Ditch Day, a celebration whose origins date back to 1921, is said to resemble, wait for it, The Amazing Race .

9

Princeton

Image: jplenio

The Princeton campus is so picturesque that it has been used as a set for numerous Hollywood productions , including films like A Beautiful Mind and Across the Universe , among others. This renowned Ivy League university also houses the oldest college literary and debating club in the United States , whose graduates include two U.S. presidents, two U.S. vice presidents, and four U.S. Supreme Court justices.

There are more than 60,000 senior theses stored at the Seeley G. Mudd Manuscript Library, for example, those of Michelle Obama, Ethan Coen, Sonia Sotomayor, and Maria Ressa. Princeton University is not only famous on Earth but also in outer space . In November 1969, Charles "Pete" Conrad, a former student and the commander of the Apollo 12 mission, took a Princeton flag to the moon.

10

Harvard

Image: Tamás Mészáros

Harvard University was founded as early as 1636, which makes it the oldest institution of higher education in the United States . With almost 400 years of history, it is not surprising that this prestigious university houses several interesting stories and curious facts to discover. Named after John Harvard, who donated half of his estate and his library of more than 400 books, the school currently has 79 libraries holding about 20.4 million items in 150 miles worth of shelves.

But there’s more! Did you know that eight Harvard alumni signed the Declaration of Independence? Also, Harvard had the first native Chinese instructor to teach Chinese in America, former students won 110 Olympic medals —including 46 gold—, 51 of its affiliates are Nobel laureates, 48 hold a Pulitzer Prize, and 10 won Academy Awards. Not bad, huh?