Treasures with a history

Did Romans invent army knives? These things are way older than you think

Jell-O, Swiss Army Knives, roller skates, lighters… It’s hard to picture these items existing hundreds of years ago, isn’t it? And yet, some of the treasures that make modern life easier have indeed been around, in some cases, for millennia. Read on to learn when these 11 items were actually first invented!

Gelatin desserts existed centuries before Jell-O! Medieval cooks used boiled animal collagen to make shimmering molds for banquets. The brand Jell-O came in 1897, when Pearl B. Wait in New York flavored powdered gelatin with fruit syrups.

It’s hard to imagine the video game giant existing before electricity. But Nintendo was founded in 1889 in Kyoto as a playing card company. For decades, it produced hanafuda cards, then toys, and only entered electronics in the 1970s.

Long before disco rinks or inline blades, a Belgian inventor named John Joseph Merlin assembled the first roller skates in 1760, skating into a London ballroom (and famously crashing). Early versions had fixed metal wheels and very poor steerability.

Famously, lighters predate matches. But do you know exactly how long lighters have existed? The first usable one appeared in 1823, invented by a German chemist. The first friction match only appeared 3 years later.

That’s what we call the famous red multi-tool standardized by Victorinox in 1891. But archaeologists discovered a Roman folding tool from around 200 AD made of silver and iron, with knife, spoon, fork, spike, and spatula. It might not have been mass-produced or standardized, but it certainly was there first.

We may associate dishwashers with mid-20th-century suburban kitchens, but the first one dates to 1886, when Josephine Cochrane built a hand-cranked model to save her fine china from clumsy servants.

The 20th century was still far away when the first working escalator was patented. The year was 1859, yet it was introduced at Coney Island only 30 years later—as an amusement ride!

It’s not a thing of the 90s! Its roots go back to 1969, when ARPANET connected four U.S. universities for military-funded research. The web’s 1991 debut by Tim Berners-Lee made it public and visual, hence the illusion that the "Internet" appeared overnight.

Do you associate concrete blocks with modernity in your mind? Think again! The Romans used advanced volcanic-ash mixes to build huge, durable structures (like the Pantheon dome or aqueducts). The Ancient Roman techniques even give clues on how to make longer-lasting concrete today.

We are not talking about electronic printers. Think about the movable type technology: It goes back in history way, way farther than Gutenberg’s system.

Printing with woodblocks and even early movable type existed in China long before the 15th-century European printing that Gutenberg perfected and popularized.

The great ancestor of GPS was probably the magnetic compass used for navigation. The discovery that magnetic force could be used to calculate the position of the poles occurred over 2000 years ago during the Han dynasty, in China.

The truth about your brain

You won’t believe what happens in your brain while you sleep

Image: Milad Fakurian

Your brain is one of the most powerful and mysterious organs in your body. It controls everything from your thoughts to your emotions and even processes information at lightning speed. But how much do you really know about it? Some long-believed myths about the brain have been debunked, while other surprising facts reveal just how incredible this organ truly is. Get ready to be amazed by these fascinating brain facts!

Image: Natasha Connell

You’ve probably heard this one before, but it’s completely false! While it’s true that not all parts of the brain fire at the same time, imaging studies show that most regions are active throughout the day, even when we sleep.

Your brain is constantly working, controlling bodily functions and emotions, and processing information. So next time someone says you’re only using 10% of your brain, you can confidently tell them that’s just a myth!

Image: Aarón Blanco Tejedor

Here’s a weird fact: While your brain processes pain signals from the rest of your body, it has no pain receptors of its own. This is why surgeons can perform brain surgery on conscious patients without causing them pain.

However, the membranes and tissues surrounding the brain do have pain receptors, which is why headaches and brain injuries can be so excruciating.

Image: Usman Yousaf

How come we have headaches if the brain has no pain receptors? Well, that’s because headaches are triggered by chemical activity in the brain, changes in nerves and blood vessels, and even fluctuating serotonin levels.

In some cases, hormones like estrogen can also play a role, which explains why migraines are more common in women.

Image: Go to Johannes Plenio's profile Johannes Plenio

Dreams are proof that your brain never rests! (Warning: this fact can make you feel exhausted.) While you sleep, your limbic system, that is, the part of the brain that deals with emotions, becomes especially active, which is why dreams often feel so intense.

On average, humans experience four to seven dreams per night, even if we don’t always remember them. And what about that scary nightmare about falling? Well, you can thank your amygdala, the brain’s fear center, for that one.

Image: Brett Jordan

Have you ever walked into a room and instantly forgotten what you were after? That’s because short-term memory only lasts about 20-30 seconds! That’s not enough!

Your brain holds a limited amount of information in its active state before deciding whether to store it or discard it. Ironically, we can’t really choose what makes the cut, but we do hope these facts stay with you!

Image: BUDDHI Kumar SHRESTHA

That sharp, icy pain when you eat something too cold? It’s your brain’s way of telling you to slow down! Officially called sphenopalatine ganglioneuralgia, a brain freeze happens when cold food or drinks rapidly chill the blood vessels in your throat, causing them to constrict and then rapidly expand. This sends pain signals to your brain, warning you of the sudden temperature shift. It’s annoying, but it’s actually your body trying to protect itself!

Image: Josh Riemer

You didn’t need us to tell you, but let’s look at the details: The average person has between 12,000 and 60,000 thoughts per day. What’s even more interesting? 95% of those thoughts are the same ones you had yesterday. Is that not surprising enough? Hear this out: 80% of them tend to be negative. That’s because our brains are wired for survival, constantly analyzing risks and potential dangers.

Image: Terry Vlisidis

Even though it only makes up about 2% of your body weight, your brain employs a major quantity of energy! It consumes 20% of your oxygen and blood supply, making it one of the most demanding organs in your body.

If your brain goes without oxygen for just five minutes, brain cells start dying, leading to irreversible damage. This is why deep breathing and cardiovascular exercise are great for brain health!

Image: Alexander Andrews

Do you know that feeling when you hit the back of your head and see stars? That’s because your occipital lobe, which controls vision, is located at the back of your brain. If you get hit there, your brain momentarily misfires, causing flashes of light.

Interestingly, your brain processes vision on the opposite side; while your right brain controls your left eye, your left brain controls your right eye. It’s one of the many ways the brain operates in a complex way.

Image: Rodion Kutsaiev

Believe it or not, your brain generates between 12 and 25 watts of electricity when you’re awake. If you can’t really grasp how powerful that is, check this out: It’s enough to power a small light bulb! Your brain’s electrical activity is what allows neurons to send signals at speeds of up to 260 miles per hour.

Image: Robina Weermeijer

Your brain may be the fattiest organ in your body, consisting of at least 60% fat! This is why consuming healthy fats, like omega-3s and omega-6s present in fish, for example, is essential for brain health.

Healthy fats stabilize brain cell walls, reduce inflammation, and support cognitive function. So go ahead and enjoy that avocado toast, it’s food for your brain!

Image: Robina Weermeijer

It’s not just your memory that fades over time; the brain itself physically shrinks as one gets older. It continues developing until your late 40s, but after that, it slowly decreases in size.

Now, size doesn’t equal intelligence, so a smaller brain doesn’t necessarily mean a less capable one. Staying mentally active, exercising, and eating brain-boosting foods can help keep it in top shape!

Image: Lisa Yount

We often think of cholesterol as bad, but your brain actually depends on it! In fact, 25% of your body’s cholesterol is stored in your brain, where it helps with learning and memory. However, unlike other organs, the brain can’t absorb cholesterol from the blood, it has to produce its own. So, while too much cholesterol in the body can be harmful, the right amount is vital for brain function. At least you can use that as an excuse to get that burger!