1

The $2 bill is real and still legal

Image: Alicia Razuri

Yep, that mysterious $2 bill featuring Thomas Jefferson isn’t a collector’s fantasy. It’s still produced today (though rarely), and the reverse shows the Signing of the Declaration of Independence. People tend to save them, thinking they’re rare, but you can spend them just like any other bill.

2

The penny used to be made of pure copper

Image: Adam Nir

During WWII, copper was needed for ammo, so in 1943, pennies were made from steel and coated in zinc. They looked silver and rusted easily, some even stuck to magnets! Today, most pennies are actually 97.5% zinc with just a thin copper coating.

3

George Washington didn’t appear on the first $1 bill.

Image: Jonathan Borba

The very first $1 bill (from 1862) featured Salmon P. Chase, the Secretary of the Treasury at the time. Washington didn't show up until 1869, and Chase had a not-so-humble role in placing his own face there.

4

There’s a tiny owl hidden on the $1 bill

Image: rc.xyz NFT gallery

Take a magnifying glass to the upper-right corner of the "1" on a dollar bill. Some people swear there’s a tiny owl or spider hidden in the pattern, said to symbolize wisdom or surveillance. Officially, it's just part of the ornate design, but still a fun little mystery!

5

The $100,000 bill actually existed

Image: Dmytro Glazunov

No, you can’t use it at Target. Printed in 1934 and featuring Woodrow Wilson, this gold certificate was used only for transactions between Federal Reserve Banks. It was never meant for public use, and owning one today is illegal!

6

Lincoln faces the other way for a reason

Image: JustStartInvesting

On most bills, presidents face to the right. But on the penny, Lincoln faces left. One theory is that the designer used a portrait that happened to face left, but it also makes Lincoln the only president looking "inward" when coins are lined up in value order.

7

"In God We Trust" wasn’t always on our money

Image: Jonathan Borba

That phrase didn’t become mandatory on U.S. currency until 1955 during the Cold War. It first appeared on coins in 1864, but the push to include it everywhere came as a nod to America’s spiritual identity in contrast to atheistic communism.

8

Coins last way longer than bills

Image: Barry A

Your average dollar bill survives about 6.6 years in circulation. Coins? They can keep going for 30 years or more! That’s why coins are still a budget-friendly way for the government to make money — and we mean that literally!

9

The buildings on the back aren’t random

Image: Ryan Quintal

Each bill’s reverse side typically features a building related to the person on the front. For instance, the Lincoln Memorial is on the back of the $5 bill (with Lincoln on the front), and the White House appears behind Andrew Jackson on the $20 bill. The choice of course had to do with government history itself! Which building do you think is missing?

10

There are secret codes on every bill

Image: Andrew Dawes

Look closely and you’ll spot tiny letters and numbers that identify which printing plate was used and where the bill was made. Ever see a tiny "F6" on a $1? That means it was printed in Atlanta, Georgia.

11

A dollar is technically made of cloth

Image: Live Richer

Despite calling it "paper money," U.S. bills are actually made of 75% cotton and 25% linen. That’s why they feel so distinct, and don’t shred like regular paper when they get wet (though they still don’t love laundry day).

1

Coca-Cola

Image: Artem Beliaikin

The first item in our list is one of the most famous examples. Created in 1886 by a pharmacist named John Pemberton, Coca-Cola was introduced as a nerve tonic meant to calm headaches and boost energy . Early ads called it a "brain elixir," and it was sold from pharmacy counters.

Over time, the drink’s medicinal claims faded as its sweet and refreshing flavor alone won over the public.

2

Grape-Nuts

Image: Mona Bernhardsen

Grape-Nuts arrived in 1897 with big promises about health benefits, including digestion and even appendicitis . Ads insisted on its remarkable healing power.

As science advanced, the claims faded, but the cereal stayed popular. Its crisp texture and hearty flavor became the true selling point once the medicinal hype fell through.

3

Corn flakes

Image: Deepak N

Developed at the Battle Creek Sanitarium, Kellogg’s Corn Flakes were created as a bland, calming food meant to improve digestion and overall health . They were part of a larger awareness movement.

The cereal’s simple crunch won broad appeal, and the medical message softened. It ultimately became the breakfast staple that we know today.

4

Ovaltine

Image: pariwat pannium

Introduced in the early 1900s, Ovaltine claimed to boost strength, improve sleep, and support children’s growth . It was marketed as a malt-based health enhancer.

As breakfast habits changed, Ovaltine’s tine softened, but its cozy appeal endured. It became more of a nostalgic treat than a serious health product.

5

7-Up

Image: Shawn Powar

This one had some backing to its claims. When 7-Up was launched in 1929, it contained lithium citrate, an ingredient used in mood-stabilizing treatments . Early advertising pitched it as a mood-lifting, calming tonic.

As formulas changed and regulations grew, the lithium disappeared, and 7-Up’s identity shifted. It ultimately took its place as a crisp lemon-lime soda with no therapeutic claims.

6

Jell-O

Image: Girl with red hat

When Jell-O debuted, it was pitched as a pure, digestible food for children and invalids . Doctors were encouraged to recommend it as a gentle nourishment.

Its colorful aspect soon eclipsed any medicinal sales angle. Today, Jell-O is tied to family gatherings, not medicinal prescriptions.

7

Fig Newtons

Image: Armando Brenlha

Early ads promoted Fig Newtons as a digestive biscuit thanks to their fruit filling . They were considered easy to assimilate and helpful for regularity issues.

Modern marketing focuses on wholesome snacking rather than health claims. Their soft, chewy texture is their lasting appeal.

8

Marshmallow candy

Image: Ricardo Loaiza

Before becoming modern candy, marshmallow confections were sold in pharmacies as throat soothers made from marshmallow root. They were considered medicinal lozenges.

As recipes changed, and gelatin replaced the plant extract, their purpose shifted entirely. Today, they’re tied to desserts and campfires.

9

Peanut butter

Image: Towfiqu barbhuiya

Health reformers promoted peanut butter as a protein-rich substitute for meat , ideal for the ill or elderly who struggled with chewing. It was part of a therapeutic diet.

Soon, its versatility outshone its medicinal beginnings. Peanut butter became beloved for sandwiches and snacks rather than health regimens.

10

Ginger Ale

Image: Nancy Hughes

Ginger Ale entered the market positioned as a stomach soother . Ginger’s long-standing reputation as a digestive remedy made the drink appealing to pharmacies.

Over time, ginger ale settled into its role as a refreshing mixer and comfort beverage. Its gentle reputation lingers, though it’s no longer pitched as a medical aid.

11

Welch’s Grape Juice

Image: Callum Hill

Welch’s promoted grape juice as a pure, healthful alternative to alcohol . Early ads suggested it supported vitality and overall well-being.

Its wholesome image stuck, though the medical claims did not. Today, Welch’s is associated more with family and wholesome habits than with old health ideals.

1

Migratory frenzy

Image: George Henry Burgess, Public domain, via Wikimedia Commons

The California gold rush triggered one of the largest mass migration waves in US history, with an estimated 300,000 people moving to the West Coast in just a few years . On January 24, 1848, a carpenter called James W. Marshall found gold at a sawmill in Coloma. The news reached the East Coast in August and, in December, President James Knox Polk officially confirmed it to Congress.

As a result, by early 1849, thousands of would-be prospectors —known as the ‘49ers’— started flooding the state every day. In January 1848, San Francisco had 800 residents; by the end of 1850 it had some 25,000 , many of them living in shacks and tents. Although most of the newly arrived were Americans, the gold rush attracted people from other parts of the world like Latin America, Europe, Australia, and Asia. Thanks to this boom, California started to grow fast, building new roads, towns, churches, schools, and hospitals.

2

No place for a lady?

Image: Popular Graphic Arts, Public domain, via Wikimedia Commons

People in the 19th century considered the California goldfields lifestyle a bit too harsh for women, so there is not much testimony of them being involved in gold-digging . Only 700 of the 40,000 people who arrived by ship to the San Francisco Bay in 1849 were women. Some came with their husbands and families, but others were just seeking adventure.

Many of the few women living in California around this time were widows. Men frequently died in mining accidents, disputes, and diseases and the women would be left alone and in need of a job. During the gold rush, women ran profitable businesses like sewing, laundry, food preparation, and boarding houses. Others would be in high demand to work in brothels and saloons, serving drinks to the hundreds of lonely gold diggers.

3

Millionaires overnight

Image: Hans

Well, not exactly overnight, but pretty quickly. Brothers John and Daniel Murphy were two adventurous early California pioneers who got into the history books for having mined about $1.5 million —around $56 million today— worth of gold in a year. Within a very short period of time, they became prosperous men and influential figures in the area.

The town of Murphys —about 140 miles East of San Francisco— is named after them and is considered one of the oldest and most important of all the Gold Rush camps in the Golden State . Nowadays, this charming little town is a must-stop for tourists on their way to the mountains looking to travel back in time.

4

Blue Jeans become popular

Image: SwellMap, Public domain, via Wikimedia Commons

In 1853 a Jewish peddler called Levi Strauss arrived in California looking for sale opportunities derived from the Gold Rush. Does the name ring a bell? A couple of years later, with the help of a tailor called Jacob Davis, he invented the garment of choice for Forty-Niners and cowboys: the blue jeans . By the end of 1873, thousands of San Franciscans were wearing these iconic durable pants, and the name "Levi's" was registered as a trademark.

Although Levi Strauss didn't exactly get rich by mining gold, he found a way to earn a fortune from it. Blue jeans —originally called "waist-high overalls"— came to represent the untamed American West. Over the years, not only workers would adopt them: kids, women, and even Hollywood stars owned at least a pair. And now, over a century and a half later, blue jeans are still an international symbol of youth, freedom, and independence .

5

The first international financial crisis

Image: Zlaťáky.cz

In just a few years, the 1849-1855 Gold Rush radically transformed California, the United States, and the world. The influx of gold served as an accelerant for U.S. economic development and enabled massive investment in public buildings, schools, and the construction of a railroad across the country. However, by the mid-1850s the world economy was so interconnected that any event could cause an international crisis.

In 1857, a crash in British banks, the speculation on railroad stock, and the sinking of SS Central America —a ship transporting a huge amount of gold—, among other incidents, triggered the first international financial crisis, known as the "Panic of 1857" . As a result, the northern domestic economy took a significant hit. However, by 1859, the Panic began to level off, and the economy began to stabilize.

6

Mark Twain struck literary gold

Image: unattributed, Public domain, via Wikimedia Commons

Did you know that one of the greatest American authors became a writer after failing as a gold miner? Samuel Clemens —a.k.a. Mark Twain—, was only one of the thousands of men who moved West during the Gold Rush in hopes of making a fortune . In 1861 he followed his brother Orion all the way to Virginia City, Nevada where he became a miner. Things didn’t go very well so he ended up working for the local newspaper, and started using the pen name by which he is remembered to this day.

Twain moved to San Francisco in 1864 and came in contact with other writers like Bret Harte and Artemus Ward. His experience in the American West inspired several of his works , such as The Celebrated Jumping Frog of Calaveras County (1865) —which brought him national attention— and Roughing It (1872). Although he didn’t become rich finding gold, Twain made a substantial amount of money through his writing.

7

Who really got rich?

Image: Unsplash

As romantic as it may sound, migrating to a new land to find gold and get rich does not necessarily mean instant success. In fact, only a few made their fortune mining gold . For most of the Forty-Niners, arriving in California during the rush was synonymous with disappointment. The lucky minority that found some gold went on expensive trips or wasted their money on poor-quality alcohol and food at the saloons of the American West, becoming broke pretty quickly.

The people who actually managed to amass some wealth during the California Gold Rush were the ones who took advantage of the opportunities surrounding the growth of cities and the financial bubble . For example, entrepreneurial merchants would open businesses to satisfy the demands of the newly arrived prospectors. America’s greatest industrialists, on the other hand, became millionaires by investing in real estate or the new railroads. Besides, in the years following the rush, mining was no longer done by adventurous individuals, but by big companies with new technology.

8

A city built out of ships

Image: G.F. Nesbitt & Co., printer, Public domain, via Wikimedia Commons

In the mid-19th century, a great number of ships arrived in California from all over the world packed with people in search of fortune. At the same time, the gold rush brought rapid growth and San Francisco soon became one of the world's great seaports, dominating shipping in the American West. These gold-seekers didn’t exactly have a return ticket, so lots of boats started to pile up on the Bay .

A few of these approximately 500 abandoned ships were sunk or buried and now can be found beneath the Embarcadero and Financial District . Others were repurposed to serve as storeships, saloons, and hotels, or their debris was used to build houses, jails, and banks. Even today, archeologists continue to discover fragments and entire ships underneath the streets of San Francisco.

9

Death Valley, a winter tragedy

Image: Marina Šurniene

Do you know where the "Death Valley" name comes from? This desert valley in the northern Mojave Desert, in Eastern California, is thought to be the hottest place on Earth. However, it was not named after its summer temps but for a winter disaster. It was a group of prospectors who got lost looking for a shortcut to the goldfields of California in the winter of 1849-1850, that gave Death Valley its grim name.

Even before the Gold Rush, California attracted settlers searching for a new life. In 1846, a group of pioneers known as the Donner Party became snowbound and nearly half of them eventually died of starvation and exposure. A few years later, although scared and forewarned by this experience, a new group ventured across the desert. While this time around the journey was not so deadly, they suffered a few mishaps that led them to nickname the area Death Valley.

10

Found gold? Have yourself a Hangtown Fry!

Image: Ivan Shemereko

According to the legend, this famous omelet cooked with bacon and topped with fried oysters was created in El Dorado Hotel in Hangtown —today’s Placerville— after a prospector claimed to have found gold. To celebrate, he demanded to be served expensive food, so the cook put together a dish with the fanciest ingredients he had at hand: eggs were delicate and therefore very valuable; bacon was shipped from the East Coast; and oysters were brought fresh from San Francisco, over 100 miles away.

Since then, the Hangtown Fry has continued to be served at many of the local restaurants . Although now you can find versions with onions, bell peppers, and spices, this iconic dish has remained practically the same as it was during the Gold Rush more than a century and a half ago. Have you tried it?