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

Not seeing each other before the wedding

Image: Katy Duclos

Not seeing each other before the wedding was once considered essential. This superstition comes from the era of arranged marriages, when it was feared the couple might back out if they met beforehand. It evolved into the romantic "first look" at the altar. Many couples now skip it in favor of private pre-ceremony photos. Understandable!

2

Marrying in white

Image: Javier González Fotógrafo

Popularized by Queen Victoria in 1840, the white gown symbolized purity and wealth. U.S. brides embraced the trend for over a century, but modern weddings increasingly feature colorful gowns or non-traditional attire. Some pick their favorite color! Why not?

3

Wearing a veil

Image: Honey Yanibel Minaya Cruz

Once meant to protect brides from evil spirits or hide them from jealous eyes, the veil became a symbol of modesty. In the U.S., it persisted more as a fashion choice. Today, many brides favor hairpieces, flowers, or nothing at all.

4

Roast speeches

Image: Mads Eneqvist

Roast-style speeches became popular as toasts with a humorous edge, sometimes poking fun at the couple, especially at casual receptions. While funny for some, they’ve also led to plenty of awkward moments. Have you ever seen a video online of particularly harsh ones? As a result, many weddings now stick to heartfelt speeches to avoid offense.

5

Throwing a bouquet

Image: Michal Mikulec

This playful tradition gave single women a "good luck" charm for marriage. It replaced older customs where guests tore pieces from the bride’s dress for luck. Many couples now swap it for alternative games or skip it entirely.

6

Receiving queues

Image: Shardayyy Photography

For decades, couples stood in a formal line after the ceremony to greet each guest in turn. It was a way to ensure everyone felt acknowledged. But some prefer not to miss that informal mingling during the reception! Instead, they spend time with their loved ones more casually, enjoying the natural flow of the party.

7

Matching bridesmaids’ dresses

Image: Joeyy Lee

Tradition once had bridesmaids dressed alike in the same color, cut, and fabric to create a uniform look. Today’s weddings often mix styles, shades, and even prints. The change allows friends to choose something flattering—and something they can actually wear again.

8

Full sit-down dinners

Image: Hồng Xuân Văn

The classic multi-course plated meal was once a wedding reception staple. Today, many couples opt for food trucks, buffet tables, or hearty hors d’oeuvres for a more social, less formal vibe. And, let’s face it, it also helps with costs and keeps the timeline flexible.

9

Saving the top tier of the cake

Image: Raquel Ming

Couples once froze the top tier of their wedding cake to eat on their first anniversary, as a symbol of enduring love. But after a year in the freezer, the result was often stale and unappetizing. These days, many order a fresh mini cake instead.

10

Rice throwing

Image: Emma Miller

Showering the couple with rice at the exit was a long-held sign of prosperity and fertility. Concerns over mess, safety, and wildlife led to alternatives like bubbles, sparklers, or flower petals. The celebration remains, just with less sweeping.

11

Dollar dance

Image: Tiko Giorgadze

In this tradition, guests paid for a short dance with the bride or groom, contributing to the couple’s honeymoon fund. It was playful and personal, but could feel awkward or even outdated. Many couples now skip it in favor of more inclusive group dances.

12

Matching family seating sides

Image: Thomas Beaman

Traditionally, guests sat on the side of the family they knew best—the bride’s family on the left, the groom’s on the right. Today, signs inviting guests to "sit anywhere" reflect a blending of families and a more casual approach. Alternatively, tables may be intentionally assigned to mix new people together.

13

Garter tosses

Image: Jeanie de Klerk

Once a bawdy medieval custom where guests scrambled for proof of consummation, it became a lighthearted party moment in American weddings. The groom removes and tosses the bride’s garter to single men. Today, it’s often skipped because it can feel outdated or awkward.

1

Abigail Adams

Image: Christian Schussele, Public domain, via Wikimedia Commons

Women in the 1770s were not supposed to be concerned about politics. But Abigail Adams, wife of the second president of the United States, talked and wrote about politics with extraordinary insight. She was one of the earliest supporters of independence, and her ideas influenced the Founding Fathers.

Often ill as a child, Abigail educated herself in her father’s library. Her studies prepared her for a life of public service in which she fought for freedom from England and women’s rights, and stood firmly against slavery. She even wrote the famous "Remember the ladies" letter 150 years before women were allowed to vote. Abigail’s influence over John Adams was so great that some rival politicians nicknamed her "Mrs. President."

2

Mary Katherine Goddard

Image: Thomas Jefferson, Public domain, via Wikimedia Commons

Mary Katherine Goddard was the director of the Baltimore Post Office and one of the world's first female publishers. Her greatest contribution to the Revolution, however, was the printing of the first copy of the Declaration of Independence that included the names of all signatories.

During the war, she ran the Providence Gazette and Maryland Journal , two newspapers that actively supported the American patriots' efforts. Despite the challenges she faced as a woman trying to make her way in a male-dominated society, Mary Katherine Goddard left an invaluable legacy as a pioneering woman in journalism and federal government work.

3

​​Martha Washington

Image: Billy Hathorn, CC0, via Wikimedia Commons

During her lifetime, she was known as Lady Washington, but Martha Dandridge Custis Washington will always be remembered as the first in a long line of first ladies of the United States. Martha married George Washington in 1759 and would be by his side in private and public life, even joining him on the battlefield.

While Washington was in office, Martha was in charge of the Presidential galas held to entertain members of the administration and foreign dignitaries. Although at that time she had no official duties or title, her warm temperament and classy poise laid the foundations for a key role that continues to this day.

4

Esther de Berdt Reed

Image: National Portrait Gallery, Public domain, via Wikimedia Commons

Even though Esther was born and raised in England, she sided with her husband, an aide to General Washington, in the American fight for independence. Five years into the war, Esther felt it was time for women to support the Continental troops in a more active way.

Esther's group, the Philadelphia Association, went door to door to ask for contributions. They ended up raising a large sum of money, which they used to supply soldiers in desperate need of provisions. Eventually, they stitched over 2,000 shirts by hand. Esther's vision and the group's dedicated efforts helped remind the men fighting the American Revolutionary War how much they were appreciated.

5

Elizabeth Schuyler Hamilton

Image: Ralph Earl, Public domain, via Wikimedia Commons

Elizabeth Hamilton, sometimes called "Eliza" or "Betsey," was the daughter of one of New York State's wealthiest and most politically influential families. In 1780, Eliza married Founding Father Alexander Hamilton. During their more than 20 years of marriage, she helped Hamilton write his letters and newspaper contributions and accompanied him on numerous historic events.

Strong-willed but caring, Eliza would devote her long widowhood to charity, helping to found New York's first private orphanage. In addition, she worked tirelessly to spread her husband's legacy and ensure that Hamilton had the place he deserved in American history.

6

Patience Lovell Wright

Image: William Faden, Public domain, via Wikimedia Commons

Did you know that during the American Revolutionary War, the Patriots had an American spy in the heart of King George's court? More interestingly, it was a woman! Famous for molding incredible wax sculptures, Patience Lovell Wright had to move to England after her New York studio caught fire.

Her friend, Benjamin Franklin, introduced her to London society. Soon enough, word of her talent reached King George III, who invited her to Buckingham Palace. But she remained loyal to her "dear America," as she called it, and when trouble started back home, Patience decided she could help America's fight for independence by providing decisive information her prominent clients revealed while posing for her.

7

Mercy Otis Warren

Image: John Singleton Copley, Public domain, via Wikimedia Commons

At a time when women were expected not to air their views on political issues, Mercy Otis Warren was a poet, playwright, and activist.

During the American Revolution, Warren not only maintained a close relationship with leading political figures such as George Washington, Thomas Jefferson, and John Adams, but she also became a historian and outspoken commentator, as well as the leading female intellectual of the early republic.

8

Penelope Barker

Image: Attributed to Philip Dawe, Public domain, via Wikimedia Commons

In the 18th century, women had no public outlet to express their convictions or to take a stand. Rebellion was considered men's business. Yet, the courageous Penelope Barker proved to everyone that women could contribute a great deal to the efforts for independence.

In 1774, in Edenton, North Carolina, a group of fifty-one women signed a declaration by Penelope, stating they would not drink tea or wear clothes made in England. The British press called it the "Edenton Tea Party" and ridiculed them. But soon enough, women all over the colonies were boycotting British products. Thanks to Penelope Barker's declaration, every woman in America discovered a smart and original way to rebel against the colonists.

9

Mary Norris Dickinson

Image: Prateek Katyal

The daughter of wealthy Pennsylvania Quakers, Mary Norris Dickinson was well-educated and owned one of the largest libraries in the colonies. She believed in a life without violence and in equal rights for men and women, ideas that she did not shy away from voicing in public to the dismay of some more conservative individuals.

For her fundamental role in political thought, influence on other women, and involvement in events related to the Constitutional Convention, the wife of Founding Father John Dickinson definitely deserves her place in history.

10

Phillis Wheatley

Image: Phillis Wheatley, CC0, via Wikimedia Commons

Brought to America as a slave, Phillis Wheatley became the first African-American author. Her poems celebrated learning and virtue and described a yearning for freedom. She also wrote a number of patriotic verses on subjects like the peace treaty of 1783 that ended the American Revolutionary War.

Her most famous piece was a poem to George Washington, in which she refers to him as "first in peace." The poem was published several times during the war to promote the Patriot cause, and Washington liked it so much that he asked to meet her. A true patriot and later a symbol for the abolition of slavery, Phillis Wheatley will always be known as a key contributor to freedom.