1

Triceratops

Image: K. Mitch Hodge

One of the most popular dinosaurs of the Late Cretaceous was found in what is now Montana, Wyoming, Colorado, and South Dakota. We're talking about the Triceratops , known for its large bony ridge on the back of its head and its three horns . Despite being a herbivore, the Triceratops was huge, weighing between 6 and 12 tons and growing up to 30 feet in length and 10 feet in height!

2

Allosaurus

Image: The frolicsome Fairy

The Allosaurus lived approximately 150 million years ago, and its fossils were found in the areas occupied today by the states of Colorado, Wyoming, and Utah. With a size that could reach 39 feet in length and weighing about 2.5 tons, Allosaurus was a massive bipedal carnivore, which means it walked on two large, strong hind legs!

3

Ankylosaurus

Image: Blond Fox

If there was one creature that looked truly prehistoric, it was the Ankylosaurus , which lived around 66 million years ago and roamed the areas now known as Montana and Wyoming. It could grow up to 30 feet long and weigh about 8,000 pounds! It was herbivorous, but its body was like a tank, covered with thick bony plates and protective spikes.

4

Ornithomimus

Image: Tina Hartung

Now it's the turn of a very special specimen: the Ornithomimus . This peculiar dinosaur, whose fossils were found in the western United States, was light and fast. It weighed up to 300 pounds, not much compared to its colleagues. It looked more or less like an ostrich, and scientists believe it even had feathers on its forelimbs .

5

Coelophysis

Image: Kvnga

Coelophysis was another bipedal dinosaur that lived about 210 million years ago . Fossils of this species have been found in what is now New Mexico, Arizona, and other parts of the American Southwest. Unlike Allosaurus , Coelophysis was small, light, and fast, measuring between 6 and 10 feet in length and weighing roughly 60 pounds.

6

Maiasaura

Image: Yena Kwon

The incredible Maiasaura lived about 75 million years ago and was discovered in North America, specifically in Montana. It was a duck-billed herbivore, and according to research, it devoted a lot of time and dedication to the care of its eggs. In fact, its name means "Good Mother Lizard." Cute, isn't it?

7

Deinonychus

Image: Jossuha Théophile

Deinonychus is the name of this dinosaur that lived around 110 million years ago , with fossils discovered mainly in Montana, Wyoming, and Oklahoma. This carnivore is believed to have hunted in packs —a behavior that, if true, would have made it even more terrifying!

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Stegosaurus

Image: Lucas George Wendt

We return to the "-saurus" with Stegosaurus , whose image is one of the most iconic, thanks in part to movies. Yes, it’s the big dinosaur with a long tail and bony plates running along its back . This 7-ton animal’s fossils have been found in Colorado, Utah, and Wyoming. Despite its massive size and weight, Stegosaurus had a very small brain .

9

Diplodocus

Image: Arthur Shuraev

Diplodocus was one of the largest dinosaurs ever to walk the Earth , and its footsteps left their mark in the lands of Colorado, Wyoming, Montana, and Utah. It could reach up to 100 feet in length, thanks in part to its incredibly long neck, and weighed between 15 and 30 tons. Yes, it’s the dinosaur that reminds many people of the Loch Ness Monster !

10

Tyrannosaurus Rex

Image: Tofan Teodor

We saved the best for last. The star of the dinosaurs is undoubtedly the popular Tyrannosaurus rex , or T. rex for friends. Its fossils have been discovered mainly in the western United States. This huge dinosaur lived between 70 and 66 million years ago and had an imposing body: it could reach 40 feet in length, stand 12 feet tall at the hips, and weigh an incredible 8 tons —as much as a bus!

1

Columbus discovered America

Image: Hector John Periquin

Although this isn't strictly about the United States, it does concern our continent. It's often said that Columbus "discovered" the Americas in 1492, but that's not precisely true. He wasn't even the first outsider to arrive! The Vikings, led by Leif Erikson, reached North America around the year 1000 AD, almost 500 years before Columbus. And, of course, the continent was already inhabited long before any European explorers arrived.

2

George Washington had wooden teeth

Image: Priscilla Gyamfi

One of the most famous historical myths is that George Washington, the first US president, had wooden teeth. While it's true that he struggled with dental problems and used several prosthetic devices made from various materials, none of his teeth were actually made of wood.

3

The US Declaration of Independence was signed on July 4, 1776

Image: Glen Carrie

Every 4th of July, the country turns into a party. And it's no wonder, since we're honoring Independence Day! Perhaps because of the date of this holiday, many people believe that the US Declaration of Independence was actually signed on July 4, 1776. In reality, the key event on that day was the Continental Congress voting to adopt the Declaration of Independence. Most delegates actually signed the document later, on August 2, 1776, in Philadelphia.

4

America became fully independent in 1776

Image: The New York Public Library

On July 4, 1776, the American colonies declared their independence from Great Britain by adopting the Declaration of Independence. However, the Revolutionary War continued for several more years. It wasn't until the war ended in 1783, with the signing of the Treaty of Paris, that the United States' independence was officially recognized.

5

Cowboys wore Stetson hats

Image: Brice Cooper

Although Stetson hats are now inseparable from the cowboy image, the reality of the 19th century was pretty different. People in the Wild West sported a variety of styles: while some did wear wide-brimmed hats similar to Stetsons, these were not the most common, and many other types were also popular.

6

Paul Revere rode alone

Image: Pixabay

Paul Revere's name became a symbol of American courage and determination. His midnight ride on April 18, 1775, was undoubtedly heroic, but some details have been distorted over time. While many think he shouted "The British are coming!", historians suggest he likely said something closer to "The regulars are coming", given the dates. And contrary to popular belief, Revere didn't ride alone; he was part of a group of riders working together to warn the colonial militia.

7

George Washington chopped down a cherry tree

Image: Jeffrey Clayton

The story of George Washington chopping down a cherry tree is one of the most famous tales in American history. However, it's actually a myth, created by one of Washington's early biographers to highlight one of his defining characteristics: honesty. Although there is no reliable historical evidence to support this famous anecdote, there is plenty of proof of the courage and honesty of the Father of His Country.

8

Al Capone was jailed for his violent crimes

Image: Ashim D’Silva

Al Capone was one of the most infamous gangsters in history. Although his life was filled with criminal activity, it wasn't his violent acts that put him in jail, as there wasn't enough evidence to convict him. Instead, authorities used tax evasion charges, and he was finally imprisoned for that reason in 1931.

9

Prohibition made drinking illegal everywhere

Image: Drew Beamer

Many people assume that drinking alcohol was completely illegal during Prohibition. In reality, the 18th Amendment and the Volstead Act (1920–1933) banned the manufacture, sale, and transportation of alcohol, but not the act of drinking itself!

10

The Founding Fathers as a unified group

Image: J. Amill Santiago

Many believe the Founding Fathers worked as a unified group, sharing a single vision without disagreement. But history tends to be a little more complex. While they collaborated and worked hard to establish the United States, they held diverse ideas and visions for the nation, and some even became rivals. Yet, despite their differences, they successfully laid the foundations for the first large-scale modern republic.

1

George Washington had wooden teeth

Image: Jon Sailer

When one thinks about this one, it can sound quite preposterous, but many people still believe it to be true. George Washington did wear dentures, but none were made of wood. His sets were crafted from ivory, gold, lead, and even animal and human teeth. The wood myth likely spread because stained ivory took on a rough, brown look .

The story stuck because it seemed to fit the image of a rustic leader. In truth, Washington’s constant dental pain was very real, but the wooden teeth are pure fiction.

2

The Declaration of Independence was signed on July 4

Image: The New York Public Library

Yes, July 4, 1776, is remembered as the day America declared independence, but most delegates did not sign the document then. It was approved that day, yet the majority of signatures were added on August 2 .

Only John Hancock and perhaps a handful of others signed on the Fourth. The legend of all the Founders signing together created a more dramatic story than reality.

3

The first Thanksgiving had turkey and pie

Image: Noah Samuel Franz

The 1621 gathering in Plymouth is remembered as a feast of turkey, stuffing, and pumpkin pie. In reality, the menu was very different. Venison, fish, shellfish, corn, and nuts were likely served instead .

Turkey may have been present, but it wasn’t the centerpiece, and sweet pumpkin pie was impossible without sugar or ovens. The foods we associate today were added later by tradition.

4

The Liberty Bell cracked on July 4, 1776

Image: Dan Mall

Many believe the Liberty Bell cracked while celebrating independence on July 4, 1776, but it didn’t. The bell wasn’t even rung that day, and its famous fracture appeared decades later .

Records suggest the crack happened in the 1830s or 1840s during use at civic events. The legend tied the crack to 1776 because it made for a more patriotic tale.

5

Paul Revere shouted "The British are coming!"

Image: brianfakhoury

Paul Revere’s midnight ride is legendary, but the famous phrase attributed to him is not. He likely warned townspeople, "The Regulars are out," since most colonists still thought of themselves as British.

The dramatic version was added later to make the story more exciting. Revere’s actual mission was successful, but it didn’t involve shouting through the countryside.

6

Colonial Americans were short

Image: James Coleman

It’s often said that colonial Americans were much shorter than people today, but that’s an exaggeration. Skeletal evidence shows the average man in the 1700s was about 5’8", not far from modern averages .

Malnutrition was less severe in America than in Europe at the time. The myth spread from comparing old, small doorways and beds, which were not actually built for shorter people.

7

The pilgrims landed on Plymouth Rock

Image: Bernd 📷 Dittrich

The story that the Pilgrims stepped onto Plymouth Rock in 1620 has no basis in fact. No historical accounts from the time mention it.

The tale was first told more than a century later, likely to create a symbolic landmark. The rock is real, but its role in the landing is pure invention to add drama to history .

8

Benjamin Franklin discovered electricity with a kite

Image: Brett Wharton

Benjamin Franklin’s 1752 kite experiment is well-known, but he didn’t "discover" electricity. Scientists had known about it for years. His test demonstrated that lightning was a form of electricity . So, somewhat similar but not the same.

The story became simplified over time into a myth of sudden discovery. Franklin’s real contribution was proving a connection, not inventing the concept.

9

The Alamo defenders fought to the last man

Image: Gabriel Tovar

The legend of the Alamo says every defender fought to the bitter end in 1836. While most did die, accounts suggest some may have surrendered and were executed afterward .

The truth is more complicated than the heroic version. Still, the myth of total sacrifice became central to Texas identity and American lore.

10

Lincoln wrote the Gettysburg Address on an envelope

Image: Forest Simon

Abraham Lincoln’s Gettysburg Address is often said to have been scribbled quickly on the back of an envelope. In reality, he drafted several careful versions of the speech in advance .

The "envelope" tale was later invented to emphasize his brilliance and spontaneity. The truth shows Lincoln was thoughtful and deliberate, not hurried.

11

Gunfights were really common in the Wild West

Image: Stefan Münz

Popular film and TV shows depict the Wild West as lawless and violent, with constant gun duels. In fact, frontier towns often had strict laws banning guns inside city limits .

Shootouts like those in movies were rare events, not daily life. The myth grew from dime novels and later Hollywood Westerns that exaggerated violence.

12

A cow started the Chicago Fire

Image: Daniel Quiceno M

The Great Chicago Fire of 1871 was long blamed on Catherine O’Leary’s cow kicking over a lantern. This story was published in newspapers and stuck in public memory.

Historians now know the cause was never proven . The cow tale unfairly tarnished the O’Leary family (and the cow itself), but it became a convenient explanation for a devastating disaster.