1

A Charlie Brown Christmas (1965)

Image: Frankieleon., CC BY 2.0

We’ll begin with an absolute classic. Peanuts is not only one of the most groundbreaking and timeless comic strips, but it also inspired one of the most memorable holiday specials in history. A Charlie Brown Christmas first aired in 1965 and featured the entire Peanuts gang trying to lift Charlie Brown’s holiday spirits. In the end, the kids realize that Christmas isn’t about expensive gifts or impressively decorated trees but rather about spending time with those we love .

2

How the Grinch Stole Christmas! (1966)

Image: Alex Stone

You might think a Christmas special without Santa Claus wouldn’t be popular, but leave it to legendary children’s author Dr. Seuss to create a character so endearing and captivating that he steals the show. For many Americans, 1966’s How the Grinch Stole Christmas! is the ultimate Christmas special—and for good reason. From the stunning animation to Boris Karloff’s incredible narration , this TV classic is truly a gem of American culture.

3

Frosty the Snowman (1969)

Image: Ethan Hu

We all have warm memories (ironically) of building snowmen with friends and family—sculpting funny features while ignoring our increasingly cold fingers. The 1969 TV special Frosty the Snowman took that childhood experience a step further by bringing to life a wish we’ve all had: What if our beloved snowmen suddenly came alive ? The special tells the story of Frosty, a snowman who springs to life when a magic top hat lands on his head.

4

Rudolph, the Red-Nosed Reindeer (1964)

Image: Tim Gouw

Like many entries in this article, the 1964 stop-motion Christmas special Rudolph the Red-Nosed Reindeer was inspired by the 1939 poem of the same name. It tells the story of Rudolph, a young reindeer ostracized by Santa’s other reindeer for his bright and shiny red nose. However, Rudolph —and the audience—soon learns that our differences are what make us special. In the end, he earns his place by leading Santa’s sleigh on Christmas Eve .

5

The Year Without a Santa Claus (1974)

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Considering he spends 364 nights a year there, you might think Santa Claus would choose a warmer place to live. Case in point: the 1974 stop-motion special The Year Without a Santa Claus tells the story of Santa waking up one cold December morning with a nasty cold . Because of this, Mrs. Claus embarks on a worldwide adventure to try to lift Santa’s holiday spirit .

6

Santa Claus Is Comin’ to Town (1970)

Image: Osman Rana

This 1970 Christmas special features an all-star cast , including Fred Astaire, Mickey Rooney, and Robie Lester . Santa Claus Is Comin’ to Town tells the story of how Santa Claus and several holiday traditions came to be. It was inspired by the 1934 Christmas song of the same name, which was extremely popular at the time.

7

‘Twas The Night Before Christmas (1974)

Image: Karsten Winegeart

The title of the 1974 TV special ’Twas the Night Before Christmas pays homage to the opening line of Clement Clarke Moore’s 1823 poem A Visit from St. Nicholas . However, the special’s plot differs greatly from the original poem. In this version, Santa Claus is offended by a published article claiming he doesn’t exist and refuses to deliver Christmas gifts that year. However, a small mouse known as Father Mouse takes it upon himself to return Santa’s Christmas spirit .

8

The Little Drummer Boy (1968)

Image: Lee Lawson

Drums aren’t traditionally associated with Christmas and are often overshadowed by softer instruments like bells or pianos. However, would you believe that a drum takes center stage in one of the most popular Christmas specials in history? Based on the 1941 song of the same name by Katherine Kennicott Davis, the 1968 stop-motion special The Little Drummer Boy tells the moving story of Aaron , a boy who, after many hardships, experiences the very first Christmas with his loved ones .

9

"A Christmas Carol" (1971)

Image: Elin Melaas

Many consider A Christmas Carol the ultimate Christmas story, as it has been adapted for film, theater, and television countless times . In that sense, we could have chosen any number of excellent Christmas specials that pay homage to Charles Dickens’s timeless classic. However, we ultimately selected the 1971 version , starring Alastair Sim and Michael Hordern, as it won the Academy Award for Best Animated Short Film in 1972.

10

A Flintstones Christmas (1977)

Image: 1950sUnlimited, CC BY 2.0

When you think about it, a Flintstones Christmas special doesn’t really make much sense—after all, this prehistoric family lived centuries before the very first Christmas. However, if we overlook that small detail, the 1977 special A Flintstone Christmas is undoubtedly one of the most enjoyable holiday TV specials . The episode follows Fred and Barney as they go to great lengths to bring Christmas to the city of Bedrock .

1

Thomas Edison

Image: Call Me Fred

When it comes to inventors, we can't fail to mention the incredible Thomas Alva Edison.

Edison was born on February 11, 1847, in Milan, Ohio, and since he was a child, he showed his interest and talent in mechanics and electricity. At the age of 11, he set up his first laboratory in his parents' home, and by the age of 12, he ran his own business: a newspaper he designed, printed, and sold himself.

Creator of the phonograph (the first device capable of recording and reproducing sounds) and a fundamental part in the development and popularization of inventions such as the electric light bulb and the motion picture camera, Edison patented more than 1000 creations during his lifetime. Impressive!

2

Benjamin Franklin

Image: Dan Mall

Born in Boston, Benjamin Franklin was one of our Founding Fathers, the men whose principles, values, and ideas shaped America. But as if that weren't enough, Franklin was also a renowned scientist, inventor, and polymath.

A pioneer in the field of electricity, he's remembered for his famous kite experiment, which demonstrated the electrical nature of lightning and led to the invention of nothing less than the lightning rod. In addition, he's also credited with iconic inventions such as the first efficient wood-burning stove (later known as "the Franklin Stove"), the bifocal glasses, and the glass armonica.

3

Samuel Morse

Image: The New York Public Library

Unlike other scientists and inventors on this list, Samuel Morse began his journey in a completely different field: art.

Morse studied at Yale, where he completed his studies in 1810. He then embarked on a trip to Europe to continue his artistic education, but this trip awakened another peculiar interest in him. Frustrated by the communication methods of his time, Morse focused his creativity on finding ways to transmit information over long distances using electrical signals. Thus, the revolutionary telegraph was born, along with its way of communication, the Morse code.

4

The Wright Brothers

Image: Simon Fitall

The Wright Brothers were the famous siblings who, in the 20th century, achieved a goal long sought by humanity: flight.

Wilbur and Orville Wright are credited with inventing, building, and flying the world's first successful airplane. As you probably know, on December 17, 1903, they made the first sustained flight in history using the Wright Flyer, their iconic invention.

On that December morning, the brothers flipped a coin, letting fate decide who would be the first to test the aircraft. Although Wilbur won, that first attempt failed. So it was Orville who flew for 12 seconds, traveling 120 feet over Kitty Hawk, North Carolina.

5

George Washington Carver

Image: Tom Hermans

George Washington Carver was born in the 1860s in Diamond, Missouri. In the 1890s, his intelligence and hard work enabled him to enter Iowa State College (now Iowa State University), where he earned a master's degree in agricultural sciences. In 1896, he became the head of the agriculture department at Tuskegee Institute in Alabama, where his career as a professor and a researcher took off.

Thanks to his investigations and tests, George Washington Carver made major contributions to agriculture, including his innovative techniques for crop rotation . In addition, he developed many and varied peanut products, such as oil, flour, soap, and ink, helping to make this crop one of the key products of the country's economy.

6

Carl Sagan

Image: Vaibhaw Kumar

The stars and the mysteries of the universe captivated the famous Carl Sagan from an early age. Born in Brooklyn, New York, in 1934, Sagan studied at the University of Chicago, where he earned degrees in physics, astronomy, and astrophysics, eventually working and collaborating with NASA.

His contributions to the field of astronomy earned him a position in projects such as the Mariner, Viking, Voyager, and Galileo missions, thanks to which we have learned a lot about Venus, Mars, and Jupiter. The famous high temperatures of Venus, for example, were confirmed thanks to his work.

Additionally, his book and series Cosmos attracted the public's interest in astronomy, inspiring many others to follow in his footsteps.

7

Grace Hopper

Image: Museums Victoria

While computer programming may seem like a modern issue, the pioneers of this field were already working as early as the 1940s.

Grace Hopper graduated in mathematics and physics in 1928 and obtained a master's degree and a Ph.D in mathematics from Yale University in 1934. Famous as a pioneer in the world of programming, Hopper's work began during World War II when she joined the US Naval Reserve. There, she worked on the earliest electromechanical computers and developed extensive and complex manuals to operate them.

Her greatest contribution came from her work with mathematical codes, which she translated and adapted into innovative machine-readable language. That innovation led to the creation of the first high-level programming languages.

8

Jonas Salk

Image: Олег Мороз

Jonas Salk is none other than the mind behind a medical milestone: the polio vaccine.

In the 1940s, Salk was beginning his career in medical research. While working at the University of Michigan, his work was crucial in developing the first successful influenza vaccine for the military during WWII. This event marked his later study of the poliovirus.

Polio was devastating during the first decades of the 20th century, but that changed dramatically thanks to Salk's work. The scientist led a team that succeeded in developing the first safe and effective injectable inactivated poliovirus vaccine (IPV) in 1955, and the rest is history.

9

Barbara McClintock

Image: digitale.de

Although her name may not be as instantly recognizable as some others on this list, her work definitely is. Barbara McClintock has undoubtedly made one of the most significant contributions to medicine and genetics.

In the 1940s and 1950s, she worked with chromosomes, investigating their role in inheritance, which led to discoveries that forever changed our understanding of genes.

Before her, genes were believed to be fixed and immutable. But McClintock came to change that idea with her most famous contribution: the discovery of transposable elements, aka "jumping genes." She demonstrated that jumping genes are present in multiple organisms, including humans, and play an essential role in genetic evolution.

10

Alexander Graham Bell

Image: Misho Tektumanidze

Alexander Graham Bell became interested in sound and communication at a young age, something that led to his greatest and most remembered contribution: the telephone.

Although born in 1847 in Edinburgh, Scotland, Alexander Graham Bell settled in the United States in 1871 and became an American citizen years later. It was here that he developed most of his experiments and research.

After years of experimenting with methods to transmit sound through electrical currents, Bell finally spoke into his invention on March 10, 1876, saying to his assistant, "Mr. Watson, come here. I want to see you." That was the first successful telephone call in history.

1

Earthquakes

As if the incredible altitude and extreme temperatures weren't enough, Mount McKinley faces another challenge: earthquakes. Due to tectonic plate activity, this type of natural disaster is common in the area, with an estimated 600 earthquakes of varying strength occurring there each year.

2

Always dressed in white

The summit of Mount McKinley is always painted white. Even during the warmer months, when grass and plants flourish in the surrounding park, the mountain's upper half remains permanently covered in snow and massive ice formations.

3

Life thrives

It's not just snow around Mt. McKinley. In the area, you'll find about 160 bird species, 39 types of mammals, 14 kinds of fish, and even one species of amphibian. That's a surprising amount of life for such a cold region.

4

Super frog

If you're curious about this unique amphibian, here's the answer: it's the wood frog, a tiny species that can survive even the harshest winters. How? By almost freezing its entire body. While the frog's cells don't actually freeze, the fluids between them do. Its heart and lungs stop working until spring returns.

5

Millions of years ago

There was a time when giant reptiles roamed what is now the Mount McKinley area. In 2005, the first dinosaur footprints were discovered in the area, followed by fossil remains. The region was once home to three-toed theropods (carnivorous dinosaurs similar to Velociraptors) and winged pterosaurs that soared through the skies above.

6

Harsh weather

If you're a fan of summer, Mount McKinley might not be the best choice for you, as it's famous for its extreme cold. Temperatures at the summit can drop as low as -75.5°F, with wind chills plunging to -118.1°F.

7

Not an easy task

Climbing McKinley is not for everyone. In fact, it's considered extremely difficult and dangerous due to the harsh weather conditions. On average, only about half of those who attempt the climb succeed.

8

Alone

Mount McKinley is lonely. While that may sound sad, it actually means it's one of the most topographically isolated peaks on Earth. In other words, it's far from any other mountain of similar height, which makes it even more striking and impressive.

9

The first

In 1913, Mount McKinley was successfully climbed for the first time. Walter Harper, a native Alaskan, is credited with the honor of being the first person in history to reach the summit of North America’s tallest peak. He was followed by his teammates: Harry Karstens, Hudson Stuck, and Robert Tatum.

10

America's "Big 5"

When it comes to mammals, Mount McKinley and its surrounding park are home to what's known as the "Big Five." These are the most powerful mammals in the region: moose, caribou, Dall sheep, grizzly bears, and wolves.