1

The light bulb

Image: Zach Lucero

Delivering electricity to the masses was one of the greatest technological advances in human history. The mid-1800s saw great competition in this area, as inventors around the world raced to invent their own electric light. The first filament bulb was developed by British inventor Warren de la Rue in 1840, but his use of a platinum filament made it expensive and impractical.

A few years later, Joseph Swan in the UK and Thomas Edison in the US each independently invented bulbs using cheaper elements. However, Edison received a patent on his bulb in early 1880, slightly before Swan. The light bulb, an invention that quickly reached every home, revolutionized life around the world, led to the development of the electrical grid, and set the stage for our modern electricity-dependent society.

2

The telephone

Image: viarami

In this modern era of emails and text messages, it can be hard to appreciate that the telephone was once revolutionary. The telegraph, the phone’s predecessor, only transmitted brief written messages. The telephone, however, allowed people to speak with one another in real time over long distances.

Inventor, scientist, and engineer Alexander Graham Bell invented the electric telephone in 1876. Although Bell was Scottish-born and also lived in Canada, he patented his invention in the US . The telephone was a game-changing technology that improved business efficiency, enabled instant global connections, and allowed emergencies to be reported as they occurred. It effectively made the world more connected and faster-paced.

3

The fire escape

Image: Lewis J Goetz

When we think of US inventions, the first things that come to mind are usually the light bulb or the telephone. But did you know that the modern fire escape was also a US innovation? Designed in 1887, this simple yet life-saving invention changed building safety forever.

In the late 1800s, fires were devastating cities across America. One woman, Anna Connelly, saw this horror up close and decided to do something about it. She designed an external iron staircase system, and in 1887, she patented it. At a time when women couldn’t even vote, Anna’s invention became a safety standard in most major cities, saving thousands of lives. Today her name is barely known, but next time you see a fire escape, remember the woman who made them possible.

4

The cash register

Image: Di Du

The first mechanical cash register for calculating and recording sales transactions was invented by saloonkeeper James Ritty following the American Civil War. He was looking for a way to stop cashiers from stealing, and finally patented his novel invention in 1879.

When a transaction was completed, Ritty's Incorruptible Cashier made a bell sound, and the amount was displayed on a large dial on the front of the machine. During each sale, a paper tape was hole-punched so the vendor could keep track of sales. Pretty ingenious, don’t you think?

5

Interchangeable parts

Image: gayulo

Standardized interchangeable parts for machines are now a staple of modern manufacturing, but it’s not a new idea. There’s evidence that thousands of years ago, ancient Carthage used them to build warships, and ancient China applied the idea to crossbows. Many centuries later, French experimentation with interchangeable musket parts inspired Thomas Jefferson.

In 1798, President George Washington and his Congress finally agreed to Jefferson’s idea of implementing the technology in America. They awarded a contract to Eli Whitney—the inventor of the cotton gin—to supply the government with 20,000 muskets. Whitney recognized the potential of developing firearms with identical parts and mechanisms. His advancements in interchangeable parts laid the foundation for modern manufacturing, enabling improved quality control, reduced costs, and faster production of goods.

6

The assembly line

Image: Public domain, via Wikimedia Commons

For most of human history, manufactured goods were custom-made. Every model of a machine, piece of clothing, or tool was unique. The development of interchangeable parts was a huge advancement, but automobile manufacturer Ransom Olds took it a step further with the assembly line in 1901. By standardizing and automating many aspects of manufacturing, uniform goods could be created faster and at lower costs.

Olds’ vehicle, the Oldsmobile Curved Dash, became the first mass-produced car . His method was later adopted and perfected by Henry Ford, whose moving assembly line for the Model T in 1913 revolutionized manufacturing. Today, the assembly line combines human labor and automation to produce nearly every mass-market product on Earth. Many experts agree it was one of the most significant technological developments of the 20th century.

7

The airplane

Image: Wright Brothers, Public domain, via Wikimedia Commons

People have always observed birds and insects and dreamed of flying. The Greeks told the story of Icarus and Daedalus, who crafted wings of wax and feathers; Leonardo da Vinci sketched and theorized flying machines, but it wasn’t until 1903 that the airplane became a reality in Kitty Hawk, North Carolina.

Wilbur and Orville Wright experimented with aeronautics for several years before achieving their successful first flight. A few years later, airplanes were first used in warfare. Within seven decades, their technology evolved and took us to the Moon. Today, the airplane is an indispensable technology that allows us to transport goods and people around the world in no time.

8

GPS

Image: Stanislav Kondratiev

It’s hard to imagine life without GPS—but do you know how it began? When the Soviet Union launched Sputnik in 1957, American physicists realized they could track the satellite’s radio transmissions using the Doppler effect.

Soon after, the U.S. military began testing and launching the Navstar Global Positioning System satellites. In 1983, President Ronald Reagan approved GPS for civilian use, and by the start of the 21st century, GPS devices were widely available in vehicles and mobile phones . Today, GPS is an essential technology for business, travel, and military operations.

9

Personal computers

Image: Unidentified U.S. Army photographer, Public domain, via Wikimedia Commons

The first electronic general-purpose computer, ENIAC, was built in 1946 at the University of Pennsylvania. It occupied 1,800 square feet of floor space and weighed 30 tons. At the time, imagining a consumer-grade computer small enough to fit in every home would have seemed impossible. Yet, just one generation later, the impossible became reality.

Over the years, computers became smaller, cheaper, and more powerful than the ENIAC’s creators could have imagined. In 1971, John Blankenbaker developed the first PC, the Kenbak-1. Fifty years later, it is clear that personal computing has fundamentally shaped the modern world.

10

The internet

Image: Lorenzo Herrera

Revolutionary technologies such as the wheel, the internal combustion engine, the telephone, and the airplane have forever changed the way we travel and communicate. The internet is no exception; it gives people access to the entirety of human existence with just a few clicks.

In 1969, computer scientists at the Advanced Research Projects Agency (ARPA) created the first network connecting labs at UCLA and Stanford. Over time, their network expanded, connecting anyone with a device. Since then, the internet has revolutionized the way human beings access resources and share information.

11

E-mail

Image: Brett Jordan

After the personal computer and the Internet, we only needed to invent a modern method of sending messages and letters to each other. The Advanced Research Projects Agency Network, known as ARPANET, sent the first email in 1971. Within five years, the majority of exchanges within the ARPANET community were via email.

With the introduction of attachments in the early 1990s, electronic mail became the fastest and easiest way to send information from point to point. By the start of the 21st century, email enabled people around the world to communicate quickly and inexpensively, and the technology quickly became one of the primary tools for global communications.

12

Magnetic resonance imaging

Image: MART PRODUCTION

The impact of the MRI machine on medicine is invaluable. The principles behind nuclear magnetic resonance (NMR) have been known since at least the end of World War II. Yet, two researchers in the late 1960s and early 1970s recognized the potential of this technology to revolutionize medicine forever.

American chemist Paul Lauterbur and physician Raymond Damadian separately experimented with NMR in scanning for cancer cells. After publishing the promising results of their experiments, a patent was filed. By 1977, the first full-body scanner was developed. Since then, millions of lives have been saved by the MRI machine. For his contributions, Lauterbur was awarded the Nobel Prize in Physiology or Medicine in 2003.

1

John Henry

Image: Ylanite Koppens

John Henry is one of the greatest heroes of American folklore, so it is not surprising that several songs celebrate his deeds. The legend of his battle with the steam drill symbolizes humanity’s struggle against automation and technological change, inspiring countless tunes.

There are many musical versions of John Henry’s story: some are ballads, while others are "hammer songs" (a type of song related to railroad work). Whatever the genre, all of these traditional songs are so good that the best American musicians have recorded them multiple times over the years.

2

Oh My Darling, Clementine

Image: Angshu Purkait

There are multiple variations of this song, but it is believed to have been written by Percy Montrose in 1883. The melody may be older and possibly inspired by a Spanish ballad , while the lyrics likely emerged sometime after the Gold Rush era.

Over the years, several verses were added and numerous versions were recorded, such as Bing Crosby's in the 1940s and Bobby Darin's in the 1960s. Despite its age, "Clementine" remains a popular song for group singing all across America.

3

In the Pines

Image: Priscilla Du Preez

Like numerous other folk songs, the lyrics and melody of "In the Pines" were passed down orally from generation to generation, and its original author remains unknown. What we do know is that it dates back to at least the 1870s and likely originated in the Southern Appalachian region.

The structure of this unique, moody, blues-style song, as we know it today, has mutated over the years, merging with other tunes. The important thing is that "In the Pines" has become a staple of American music, being recorded by numerous artists, including Bill Monroe, Lead Belly, and even grunge band Nirvana.

4

Worried Man Blues

Image: LunarSeaArt

When hillbilly singers came into contact with African American blues, songs like "Worried Man Blues" began to emerge. The verses were likely inspired by the story of someone sentenced to work on a chain gang.

The song may have roots in a 19th-century African American spiritual , but it became widely known after the Carter Family recorded it in the 1930s, giving it a strong foothold in the country and early bluegrass repertoire. Decades later, folk revivalists adopted the tune, ensuring its place as a classic of American folk music.

5

Oh Shenandoah

Image: Matheus Ferrero

Although the exact origin of this folk song is uncertain, we know that it was sung as a river shanty in the 19th century, especially by American and Canadian fur traders traveling down the Missouri River.

The word Shenandoah is connected to the Shenandoah Valley in Virginia, though its precise meaning is debated. Some suggest it derives from an Iroquois word meaning "land of big mountains" or "daughter of the stars." Some versions of the song tell the story of a redskin chief, Shenandoah, and his beautiful daughter. According to the legend, a white trader eloped with the maiden after silencing the chief with firewater.

6

Oh! Susanna

Image: ClickerHappy

"Oh! Susanna" is often considered the first big hit in American popular music. It became especially famous among the '49ers during the California Gold Rush and became an emblem of the conquest of the West.

With influences from European polka music and earlier traditional folk songs, "Oh! Susanna" was published in 1848 by Stephen Foster, later nicknamed the "Father of American Music." Many artists recorded different versions over the years, including The Big 3, The Byrds, and James Taylor.

7

Red River Valley

Image: Priscilla Du Preez

It is common for folk songs to be adapted to different regions , and this tune is no exception. Over the years, it has been named and renamed for many different valleys and locales. Most 20th-century versions use the title "Red River Valley" and, by implication, place it along the Red River that forms part of the boundary between Texas and Oklahoma.

However, some evidence suggests that the original version actually dates to around 1870 in Canada, near the Red River that flows into Lake Winnipeg. In that version, the lyrics tell of a French-Indian maiden lamenting the departure of a soldier who had come, stayed briefly, and then left. For Americans, though, the song is most closely associated with cowboys and the Red River of the South.

8

Man of Constant Sorrow

Image: Wilawan Pantukang

The origin of this southern mountain song is somewhat obscure. It is absent from most of the major standard collections, but some experts believe it might have been inspired by the 19th-century hymn "I Am a Poor Pilgrim of Sorrow."

Although numerous versions with different names and lyrics have circulated since at least the early 20th century, "Man of Constant Sorrow" was popularized by the Stanley Brothers in the 1950s. Soon after, musicians such as Bob Dylan, Joan Baez, and Judy Collins recorded their own interpretations, helping to cement its place as a classic of American folk music.

9

Home on the Range

Image: Jeremy Bishop

One of the best-known cowboy and Western songs, "Home on the Range," has long been the subject of disputes regarding its authorship. The most widely held theory is that it was inspired by a poem called "My Western Home," written by Dr. Brewster Higley in the 1870s. The well-known American composer David W. Guion claimed to have composed the music, stating that he wrote it at the age of 16, influenced by his life in West Texas.

"Home on the Range" enjoyed great popularity in the 1930s through radio broadcasts and recordings during the cowboy-song fad. Since 1947, it has been Kansas’s official state song.

10

Michael, Row the Boat Ashore

Image: Blind Rhino Media

Folk song revivalists discovered "Michael, Row the Boat Ashore" in the Georgia Sea Islands and passed it around widely and fervently. The tune blends spiritual, calypso, and sea-song styles, and it likely originated as both a spiritual and a work song sung by enslaved crews on plantation riverboats.

The name Michael refers to the Archangel Michael, and the song was likely used when the load was heavy or the boat was going against the tide. In the 1960s, it was popularized by folk band The Highwaymen and was also recorded by other artists such as Pete Seeger, Bob Gibson, and Harry Belafonte, among others.

Remembering the fallen

Did you know Memorial Day was first called Decoration Day?

Memorial Day is an occasion to honor and mourn those who gave their lives in defense of the United States . This federal holiday, observed on the last Monday of May, has a long and evolving history, and it wasn’t always celebrated the way we know it today. Here are 10 facts about how Memorial Day came to be.

Decoration Day

Image: Caroline Attwood

Memorial Day was originally called Decoration Day and was first observed on May 30, 1868, as a way to honor Union soldiers who had died in the Civil War. However, the idea behind it actually came from the South. Mary Ann Williams , whose husband died during the conflict, wrote a letter to a newspaper urging women to set aside a day to decorate the graves of fallen soldiers.

The end of May

Decoration Day was instituted by the Army’s commander-in-chief, General John A. Logan , and was quickly adopted by most states. There are several theories about why the date was chosen: some say Logan purposely picked a day that was not the anniversary of any Civil War battle, while others believe he chose it because it’s the time of year when most flowers bloom.

National Cemeteries

During the American Civil War, the U.S. Congress passed an act to create military burial places for Union soldiers. By the end of that year, 12 national cemeteries had been established. Today, the National Cemetery System maintains 164 military burial sites, the most well-known being Arlington National Cemetery and Gettysburg National Cemetery .

Renaming

The term Memorial Day was first recorded in the 1880s and grew increasingly popular after World War II. However, the holiday wasn’t officially renamed until 1968, when the Uniform Monday Holiday Act moved its observance from May 30 to the last Monday in May.

A moment for remembrance

The establishment of Memorial Day weekend has been seen by some as a benefit to the travel, sports, and entertainment industries. Veterans’ organizations have urged that the holiday be returned to its original date, arguing that the three-day weekend undermines its intended meaning. In response, Congress passed the National Moment of Remembrance Act , which encourages people to pause at 3:00 p.m. for a moment of silent reflection and remembrance.

Poppies

Several English-speaking countries adopted the poppy flower as a symbol of remembrance for fallen soldiers after World War I. This tradition was inspired by the poem In Flanders Fields , written by Canadian military doctor John McCrae , which describes poppies growing among soldiers’ graves. In the United States, the poppy was originally associated with Veterans Day but is now primarily worn during Memorial Day weekend.

The flag

The national flag flies at half-staff during periods of mourning. While special instances of mourning can be proclaimed by government authorities, remembrance holidays follow a set protocol. On Memorial Day, the U.S. flag is briskly raised to the top of the staff, then solemnly lowered to half-staff, where it remains until noon. At that time, it is raised again to full staff to honor the nation’s living heroes and those still serving.

The Unknown Soldier

One of the focal points of Memorial Day is the Tomb of the Unknown Soldier at Arlington National Cemetery . This symbolic monument was established in 1921 and originally held the remains of an unidentified soldier who died in World War I. Later, unidentified soldiers from World War II and the Korean War were also interred at the site. A permanent military guard stands watch year-round, honoring the sacrifice of all unidentified service members.

Memorial Wreaths

Wreaths are a common sight on Memorial Day—but where does the tradition come from? In 1992, Morrill Worcester, owner of a wreath company in Maine, found himself with a surplus of holiday wreaths. Wanting to put them to good use, he donated them to Arlington National Cemetery as a tribute to the fallen—a gesture that soon became an annual tradition. After a photo of the wreath-covered graves went viral in 2005, the nonprofit organization Wreaths Across America was established to help volunteers place wreaths on veterans’ graves across the country.

The start of the summer

Even though it is a day of remembrance, Memorial Day weekend also marks the unofficial start of summer . The holiday often coincides with the end of the school year, and the warmer weather encourages families to gather for barbecues and cookouts, attend parades, and visit the graves and memorials of fallen soldiers.