1

John F. Kennedy’s PT-109 coconut

Image: 🇻🇪 Jose G. Ortega Castro 🇲🇽

In 1943, John F. Kennedy commanded the PT-109, a torpedo boat, in the Solomon Islands during World War II . When a Japanese destroyer sank his boat, JFK carved a rescue message on a coconut, which local islanders delivered to Allied forces, saving him and his crew. 18 years later, Kennedy became the US president and kept the coconut as a paperweight in his office. Today, it’s preserved at the John F. Kennedy Presidential Library and Museum in Boston.

2

George Washington's dentures

Image: BakedintheHole, via Wikimedia Commons

Everyone knows George Washington struggled with dental problems throughout his life. And while the old myth about his wooden teeth isn’t true, our first president did wear dentures made from different materials. One of his most complete sets has been carefully preserved and is now on display at George Washington's Mount Vernon estate and museum.

3

Abraham Lincoln’s top hat

Image: Brewbooks from near Seattle, USA, via Wikimedia Commons

It’s easy to picture Abraham Lincoln with his signature top hat. To get a little closer to Honest Abe, you can visit the National Museum of American History in Washington, D.C., where the very hat he wore the night he was fatally shot is on display.

4

The contents of Lincoln's pockets

Image: Jorien Loman

The hat isn’t the only relic that remained from that tragic night. Everything Abraham Lincoln had in his pockets —two pairs of glasses, a pocketknife, a Confederate $5 bill, a linen handkerchief, and a gold pocket watch—is preserved and on display at the Library of Congress in Washington, D.C.

5

Thomas Jefferson’s inkwell

Image: Clark Young

Fortunately, you can still see with your own eyes two of the inkwells that belonged to the man who penned nothing less than the Declaration of Independence. That’s right! The first, a ceramic inkwell shaped like Enlightenment philosopher Voltaire’s head, is housed at the Thomas Jefferson Foundation at Monticello. The second, made of bronze and engraved with "T. Jefferson, 1804," is part of the White House Collection.

6

Theodore Roosevelt's pince-nez glasses

Image: via Wikimedia Commons

Teddy Roosevelt is practically synonymous with his pince-nez glasses; even the giant sculpture of his face on Mount Rushmore shows him wearing them. But did you know they once saved his life? In 1912, while campaigning, Roosevelt was shot, but the bullet struck the steel case holding his glasses and didn’t penetrate it. Today, both the case and the 50-page manuscript he carried in the same pocket are on display at the Theodore Roosevelt Birthplace National Historic Site in New York City.

7

John F. Kennedy's rocking chair

Image: Abbie Rowe. White House Photographs. John F. Kennedy Presidential Library and Museum, Boston, Public domain, via Wikimedia Commons

President Kennedy’s rocking chair appeared in many photos of him with important visitors in the White House. Recommended by his doctor to ease his back pain, the iconic chair is now part of the collection at the John F. Kennedy Presidential Library and Museum.

8

George Washington’s Revolutionary War bedstead

Image: Wikimedia Commons

If you thought this list was just about small objects, think again. Two of George Washington’s folding field beds from the Revolutionary War have also been preserved. One is displayed at the Henry Ford Museum in Michigan, and the other can be seen at the Mount Vernon Museum in Virginia.

9

Franklin D. Roosevelt’s stamp collection

Image: Tolga deniz Aran

F. D. Roosevelt was an avid stamp collector, amassing a collection of over 1.2 million stamps. After his death, his family sold most of them, but some—especially those he received officially from foreign governments—are preserved at the Franklin D. Roosevelt Presidential Library and Museum in Hyde Park, New York. The museum also houses items related to his hobby, including a magnifying glass, a perforation gauge for measuring stamps, and his portable wooden stamp box.

10

George Washington’s dress sword

Image: Wonderlane

In addition to his dentures, Mount Vernon preserves many other personal items that belonged to George Washington. Among them are several of his swords, and it is believed that one of them may be the very dress sword he wore at his inauguration as the first American president in 1789!

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.

1

"No one ever escaped alive"

Image: Kelly

Alcatraz loved to sell itself as inescapable. According to official records, no inmate ever made it off the island alive . But the fine print matters…

Five men were not listed as dead, only as "missing and presumed drowned." No bodies were ever recovered… But, considering the cold, fast-moving waters of San Francisco Bay, drowning was a plausible explanation.

2

A 1962 escape still haunts the FBI

Image: Line Knipst

For example, there’s this one story. In June 1962, Frank Morris and brothers John and Clarence Anglin vanished from their cells. They left behind dummy heads made of soap, toothpaste, and toilet paper . Using spoons, they had widened ventilation holes and built a raft from raincoats.

The FBI closed the case in 1979, concluding they drowned. But decades later, new evidence and family testimony reopened the question: What if they didn’t? No bodies were ever found.

3

It was not the harshest prison in America

Image: Klemens Köpfle

Despite its fearsome reputation, Alcatraz was not physically brutal by prison standards of the 1930s. Inmates had single cells, decent sanitation, and regular hot meals, which was not common at the time. In fact, after transfers to other prisons, some inmates requested to return.

4

Prisoners ate shockingly well

Image: Grant Durr

Alcatraz did not believe in hunger as punishment. As mentioned, inmates were served hot breakfasts, fresh bread, meat, and even desserts. The logic was simple: well-fed prisoners were calmer prisoners.

During the Great Depression, some inmates ate better on the Rock than they had on the outside.

5

Al Capone was just another prisoner

Image: Sindre Fjerdingby

Al Capone might have arrived at Alcatraz expecting influence, but he found none there. Stripped of his power, he became inmate number 85, assigned to cleaning duty.

He received no special treatment and no protection from other inmates. His mob connections meant nothing behind those walls. All of this proves that Alcatraz was designed to erase reputations.

6

There was music

Image: Clément Falize

Did you know that Alcatraz had music? Inmates were allowed instruments , and a small prison band rehearsed regularly. There are records of even Al Capone participating in its band.

Legend has it that on quiet evenings, the sound carried across the water to San Francisco. But that may be only local lore.

7

"The Hole" was a real nightmare

Image: Vanessa Werder

Solitary confinement at Alcatraz was called D Block, but inmates knew it as "the Hole." Prisoners were kept in near darkness and silence for days or weeks.

There, meals were restricted, sometimes to bread and water. Inmates came to fear the Hole, as it meant no talking, no reading, no escape from your thoughts, and no sense of time.

8

Nearby sharks were not a threat

Image: Rodrigo Soares

Hollywood seems to love the idea of man-eating sharks circling Alcatraz. But, in reality, the bay’s sharks are small and harmless to humans.

What truly made escape deadly was the near-freezing water and violent tidal currents . Temperatures could drop below 55°F, which would cause rapid muscle failure.

9

Not all inmates were America’s worst criminals

Image: Rita Morais

Alcatraz housed famous gangsters, but many inmates were sent there for different reasons. Some were transferred simply for disciplinary issues, breaking rules, or attempting escape elsewhere.

The figure of the island was a control tool, not just a punishment for violent crime. The threat of being sent to the island seemed to keep other prisons in line.

10

Families lived next to the cells

Image: Liberty Jay

Guards lived on the island with their wives and children . So, you could say that Alcatraz was a whole neighborhood. Kids played baseball, rode bikes, and attended school by ferry.

There were birthday parties and movie nights, because normal life unfolded just steps away from locked cells.

11

Alcatraz closed because it was too expensive

Image: Malcolm Hill

The prison shut down in 1963 because it was financially unsustainable . Everything from fresh water to fuel had to be shipped by boat. Plus, salt air corroded buildings constantly, driving maintenance costs sky-high.