1

Meghan Markle

Prince Harry’s famous wife wasn’t born with the name Meghan—that’s actually her middle name. Her given name is Rachel , which interestingly enough, matches her character’s name on Suits .

So while the world does indeed know her as Meghan Markle, her full birth name is Rachel Meghan Markle—a fun insider joke for fans of the hit television show.

2

Louis C.K.

The comedian’s real name is Louis Székely . He started using the initials "C.K." as a professional alias, simplifying the pronunciation for audiences.

3

Ralph Lauren

Ralph Lauren – Having a first name as a last name might sound effortless, but it wasn’t always that simple. He was actually born Ralph Lifshitz , a name he later changed to achieve a smoother, more marketable sound.

4

Michael Kors

Meet the second designer on our list. The man we know today as Michael Kors wasn’t always called that—he was born Karl Anderson Jr. before changing his name later in life.

5

Muhammad Ali

Born Cassius Marcellus Clay on January 17, 1942, in Kentucky, Muhammad Ali went on to become a boxing legend, winning the World Heavyweight Championship three times.

The Greatest, as he was known in the boxing ring, decided to change his name in 1964 after converting to Islam and joining the Nation of Islam (NOI).

6

Bill Clinton

Born William Jefferson Blythe III on August 19, 1946, he later took the surname Clinton after being adopted by his stepfather. He went on to become the 42nd U.S. president, serving from 1993 to 2001.

7

Malcolm X

Born Malcolm Little on May 19, 1925, he rose to prominence as an African-American Muslim minister, speaker, and civil rights leader before he died in 1965.

He adopted the name Malcolm X to symbolize the rejection of his family's "slave name" and the lost ancestral African name stolen during slavery.

8

Tiger Woods

The world-famous golfer was born Eldrick Tont Woods but is better known by his nickname, Tiger. The name was given in honor of a close friend of his father’s.

9

Larry King

Larry King was born Lawrence Harvey Zeiger in Brooklyn, New York. Just minutes before his first live broadcast, a manager said his name was "too ethnic." Spotting an ad for King’s Wholesale, they chose "King" on the spot.

10

Sasha Obama

The Obamas' youngest daughter isn’t actually named Sasha. Her full name is Natasha —a fact that went viral after users spotted it on Barack Obama’s Wikipedia page.

11

Joan Rivers

It might be hard to picture this TV star as anyone but Joan Rivers. Born Joan Molinsky , she changed her name on her agent’s advice when starting out. That’s how Joan Rivers came to be.

12

Oprah Winfrey

Talk show host and author Oprah Winfrey was originally named Orpah , after a biblical figure. Since people often struggled to pronounce and spell it, her name gradually changed to Oprah—a name now so iconic that it’s recognized worldwide on its own.

1

Legal drinking age

Image: Elevate

When was the first time you tried a beer? Probably at 21 or later. While that's completely normal here in the US, it can seem a bit strange to people in other parts of the world. Why? In America, you can vote, serve on a jury, and even get married in some states at 18, but you still can't legally buy alcohol until you're 21. In many other countries, the legal drinking age is 18—or even younger—and that's why they find our law unusual.

2

The faces of real estate agents

Image: Tierra Mallorca

We're used to walking through a neighborhood and seeing signs with real estate agents' faces in front of homes for sale. But in other countries, that's pretty unusual! In many places, real estate transactions are more impersonal; you deal with an agency, not a specific person. Here in the US, we like to put a face to the name. Getting to know the person helping you buy or sell a home feels more personal and trustworthy. It makes sense, right?

3

Our coins

Image: Shot by Cerqueira

Many of us don't even notice this until we travel abroad, but some of our coins don't actually show their value! Sure, you'll see words like "Five Cents," "One Cent," or even "One Dime," but there's no actual number printed on them. When you think about it, that's kind of strange, right? Especially when most countries display the value on their coins using numbers.

4

American flag everywhere

Image: camera obscura

In many countries, their national flag is used only for formal or official purposes, but that's not the case in the US. We tend to see the American flag literally everywhere, not just at official functions or holiday celebrations, but also on all kinds of products and imagery. From T-shirts and caps to food packaging and even swimsuits, our flag is a constant presence in everyday life.

5

No bad words on TV

Image: Kevin Woblick

If you're in America and turn on your TV right now, you'll find everything from romantic scenes to shows about zombies or violent crimes, but you'll rarely hear any bad language. Our television generally doesn't include insults or swear words, while in other countries they often do, even in shows that air during times when children might be watching.

6

Dinner before 8 PM

Image: Or Hakim

Depending on the region, dinner in the United States is often served before 8 p.m., and sometimes even before 7 p.m. But in many other countries, that's considered too early. In Latin America, for example, most people eat dinner between 8 and 11 p.m.!

7

The Imperial System

Image: Jarosław Kwoczała

We Americans use miles, feet, pounds, and degrees Fahrenheit, but this is often very confusing for visitors from other parts of the world. We are totally used to the Imperial System, but in most countries, the Metric System reigns supreme, with everything measured in meters, kilometers, kilograms, and degrees Celsius.

8

Big portions

Image: mafe estudio

Large portions are deeply ingrained in our daily lives. Whether it's restaurant meals, snack packs, or soft drinks, everything tends to be bigger in America. This can be surprising for foreigners who come here and order food, since in many other countries, dishes are smaller, and the custom of taking leftovers home after eating at a restaurant isn't as common as it is in the US.

9

Turkey pardon

Image: Tyler Donaghy

The pardoning of the turkey by the US president is a big event for many Americans. But in other parts of the world, where Thanksgiving isn't celebrated, it can come as a surprise. To foreigners, this formal ceremony involving a turkey might seem quite strange. Since Thanksgiving traditions aren't part of their history, this custom is uniquely American.

10

Alumni homecoming

Image: Carol Highsmith's America

Perhaps you've had the chance to participate in Homecoming, the annual event that celebrates university spirit with parties, sports games, and other activities for students returning to campus. While it's a big part of our college tradition and communities are deeply involved, it's quite different in other parts of the world, where the return to school usually happens with little fanfare.

1

Duct tape

Image: Lucas van Oort

One of the most useful things to have around is, without a doubt, duct tape. This product can help fix an endless number of everyday problems in virtually any environment.

This adhesive tape was invented during World War II by a division of Johnson & Johnson called Revolite. It was initially used to seal ammunition cases because of its water-resistant properties.

2

GPS

Image: henry perks

The GPS technology we all use daily on our smartphones to navigate from point A to point B was originally developed by the U.S. military. It was designed to track the position of military units and help them find their way efficiently across any terrain —much like how we use it today for civilian purposes.

3

Internet

Image: Glenn Carstens-Peters

Few technologies have become such a big part of our lives in just a couple of decades as the Internet. Its origins trace back to the 1970s, when the Defense Advanced Research Projects Agency (DARPA) created an interconnected network linking military centers to enable resource sharing.

The connection of commercial networks and enterprises by the early 1990s, along with the advent of the World Wide Web, marked the beginning of the transition to the modern Internet.

4

Walkie-talkie

Image: garrett parker

From children’s toys to invaluable communication devices used in critical situations, walkie-talkies are a common fixture in modern life. Their development during World War II has been variously credited to Donald Hings, radio engineer Alfred J. Gross, Henryk Magnuski, and engineering teams at Motorola.

Initially used by infantry, similar designs were created for field artillery and tank units. After the war, walkie-talkies spread to public safety and eventually commercial use.

5

Microwave oven

Image: Erik Mclean

Believe it or not, microwave cooking was accidentally discovered during a military-related project just after World War II.

In 1946, Percy Spencer, a scientist working on a magnetron at Raytheon, noticed that a peanut cluster candy bar in his pocket had melted from the magnetron’s microwave radiation. Curious to experiment further, he brought in some kernels of corn and made the first-ever microwave popcorn—leading to the invention of the microwave oven.

6

Super glue

Image: Scott Sanker

In 1942, a research chemist working for a defense contractor was developing a high-precision targeting sight for weapons. Although the project didn’t produce the expected results, the resulting product was incredibly sticky , leading to the creation of the now-famous Super Glue.

7

Aviator sunglasses

Image: Griffin Wooldridge

Aviator sunglasses were developed in the 1930s as a lighter alternative to the bulky goggles worn by pilots during the early years of aviation. Those goggles were heavy, uncomfortable to wear, and prone to fogging up mid-flight.

Colonel John Macready of the U.S. Army Air Corps helped develop the first set of aviator sunglasses, which became known as Ray-Bans—named for their purpose: banning the sun’s rays from a pilot’s eyes.

8

Packaged salad mixes

Image: Nathenia Landers

The bags of packaged salad mixes found at any local supermarket use "modified atmosphere packaging" to delay ripening and spoilage.

This technology was developed in the 1960s through a collaboration between Whirlpool Corp. and the U.S. Navy to send fresh lettuce and celery to troops in Vietnam .

9

Bug spray

Image: Wolfgang Hasselmann

The active ingredient in most insect repellents, known as DEET, was developed by the U.S. Army in 1946 for use by military personnel operating in insect-infested areas . The product’s success led to its commercial release.

10

Disposable sanitary pads

Image: Annika Gordon

During World War I, Kimberly-Clark invented Cellucotton, a wood pulp–based material designed to be more absorbent and cost-effective for use in bandages.

After the war, the company discovered that Army nurses had repurposed Cellucotton as sanitary napkins , which inspired the creation of Kotex—the first disposable sanitary pads.

11

Frozen juice concentrate

Image: Fotografía de Alimentos

In 1942, USDA scientists developed frozen concentrated orange juice during World War II to help provide soldiers with sufficient Vitamin C . Although it was never distributed to the military, the product was later introduced to consumers by Minute Maid.

12

WD-40

Image: Daniel Campbell

WD-40, now a common household product, was originally developed in 1953 to prevent rust and corrosion on the outer shell of the Atlas missile . Created by the Rocket Chemical Company, the name WD-40 stands for "water displacement," with the "40" representing the number of attempts it took to perfect the formula.