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

Rabies

Image: Samuell Morgenstern

Rabies-infected people and animals cannot swallow water. This is why rabid dogs drool at the mouth, because they are unable to swallow.

In the ancient world, a "cure" for rabies involved forcibly submerging people in bodies of water to force the liquid intake . Quite often, the consequence, as you might have guessed, was death by drowning.

2

Bloodletting

Image: David Trinks

In the days when barbers were also designated surgeons, bloodletting was a common cure for multiple conditions. This gruesome technique was performed not just using surgical tools but also by using leeches , which were directly applied on the human body , to suck blood out of the wretched individuals who required treatment.

3

Madstones

Image: Atul Vinayak

Folk remedies were common in a time when seeking professional medical help was a luxury for most people. Popular in mid-19th-century America, madstones were big hairballs extracted from the guts of goats and deer .

These objects were believed to possess medicinal properties, such as curing rabies and serving as an antidote to various poisons.

4

Chloroform

Image: Carlos Felipe Ramírez Mesa

Many substances that we now recognize as poisonous were once believed to be beneficial to health. During the 19th century, chloroform was commonly used as an anesthetic in surgeries .

However, later studies revealed that long-term exposure to chloroform could cause liver and kidney damage, respiratory depression, and may even increase the risk of cancer.

5

Arsenic

Image: Denise Chan

Another poisonous substance once thought to be beneficial was arsenic, which was used to treat malaria, syphilis, and other ailments during the 19th and early 20th centuries.

However, it was later discovered that arsenic exposure could lead to poisoning, causing severe health complications and even death.

6

Mercury

Image: Benjamin Hibbert-Hingston

Similar to chloroform and arsenic, mercury was once thought to be beneficial to the human body. However, as scientific understanding advanced, its harmful effects became widely known .

Today, we know that mercury is highly toxic and can cause severe damage to the kidneys and nervous system.

7

Urine

Image: Fotografía de Alimentos

Drinking urine for medicinal purposes was common in ancient Egypt, Greece, and Rome, where it was believed to have therapeutic benefits and was used as a remedy for various health conditions, including kidney and liver problems .

8

Trepanning

Image: Mathew Schwartz

Trepanning, a common medical practice in ancient civilizations, involved drilling a hole in the skull to relieve pressure or treat a variety of medical ailments such as headaches, seizures, and mental disorders .

However, due to the lack of modern anesthesia and surgical tools, the procedure was extremely dangerous and carried significant risks.

9

Cupping

Image: Katherine Hanlon

Creating a vacuum on the skin using heated glass cups was a popular therapy for various conditions, including pain, inflammation, respiratory problems, and digestive disorders . While not a particularly harmful technique, aside from the markings left on the skin, its benefits have not been scientifically proven.

10

Mummy powder

Image: Narciso Arellano

In medieval times, it was commonly believed that "mummy powder" possessed healing properties. This substance was made from ground mummies obtained from Egypt and was thought to be particularly effective in treating wounds, headaches, and digestive issues .

11

Nightshade

Image: Georg Eiermann

Nightshade is a poisonous plant with soothing properties, which was used as a pain reliever as it can induce a state of calm in the user.

However, this plant is also highly toxic and can cause hallucinations, delirium, and even death if consumed in large quantities.

12

Tobacco

Image: Juano colombo

It might be hard to believe today, but back in the 1600s, schoolchildren were encouraged to smoke cigarettes , which were then thought to be disinfectants.

Cigarettes were also believed to be beneficial for both the lungs and the mind. Thankfully, we now know better.

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?