The first commercial Christmas card was created in 1843

See a collection of Valentine's Day cards from the past century

Hallmark helped popularize (and commercialize) the holiday in the early 20th century, largely through its greeting cards. This digital collection includes cards from the 1910s through the 2000s, allowing you to see how the holiday—and our popular understanding of romance—has evolved. Below is a card from the 1930s.

Santa Claus originally wrote Christmas letters instead of receiving them

Parents originally used the letters as an opportunity to help discipline their children. Gifts eventually took on a more central role in the holiday, turning the letters into chances for kids to write Christmas wish lists.

Two Americans solidified the modern conception of Santa Claus in the 1800s

Clement Clarke Moore’s 1823 poem, now known as “The Night Before Christmas,” envisioned Santa riding a sleigh pulled by reindeer, making nighttime visits to provide gifts. Thomas Nast’s Harper’s Weekly illustrations in the 1860s–1880s established his distinctive appearance—large, bearded, and clad in an (often) red suit.

Thomas Edison created the first strand of electric Christmas lights in 1880

Edison strung electric bulbs outside his laboratory in 1880, and his business partner Edward H. Johnson first wrapped a tree in lights in 1882. It wasn’t until the lights were commercialized in 1917 that they became common in household Christmas decorations.

Queen Victoria and Prince Albert popularized the Christmas tree in 1840s Britain

An 1848 engraving of Queen Victoria and Prince Albert around a decorated Christmas tree sparked a trend across Britain and the US. Their German-inspired custom quickly became a fashionable centerpiece of holiday celebrations.

Dalí partnered with Hallmark to design surreal Christmas cards

Dalí pursued commercial work throughout his career. In 1948, Hallmark released a set of Christmas cards designed by the artist. A decade later, he created images for additional holidays, including Valentine's Day, Easter, and Mother's Day.

Martin Luther is often cited as the first to decorate the Christmas tree—though the practice began decades earlier

Luther lore claims he may have been the first to link tree decorations to Jesus, as he used candles to symbolize the Nativity star. However, German bakers had adorned evergreens with apples and sweets as early as 1419 for Christmas Eve displays.

The first printed Advent calendars were from Germany in the early 1900s

Printed Advent calendars originated in early-20th-century Germany, where printer Gerhard Lang created the first commercially produced versions. Inspired by his mother’s homemade countdowns, Lang added small doors in the 1920s, establishing the format that spread worldwide.

Christmas carols evolved from medieval folk songs to modern holiday staples

Christmas carols began as communal folk songs in medieval Europe, and were later adapted into religious hymns. Revived in England in the 19th century, they have become a core holiday tradition around the world.

See Rockefeller Center's Christmas trees since 1931

In 1931, with construction still underway, Rockefeller Center's very first Christmas tree was erected out front. John D. Rockefeller himself greeted the construction workers who put up the first 20-foot tree and decorated it with cranberries and paper garland.

Christmas celebrates the anniversary of God's birth as the man Jesus

The major holiday originated in the Christian doctrine of God's incarnation in first-century Roman Judea. Though it was not celebrated for several hundred years after Jesus' death, it took on greater importance as the church spread, culminating in a global holiday season today.

Read about the history of gift cards

The first retailer to sell gift cards was Neiman Marcus, but Blockbuster popularized them by selling them via in-store displays in 1994. Starbucks then started selling gift cards that could be reloaded in 2001.

The long-lost art of coded postage stamps

In the 1800s, the postcard was a relatively new phenomenon, as was the post office. In the burgeoning system, recipients of mail had to sometimes pay prohibitively costly fees to receive it. So to get around the fees, a system of placing stamps on the envelopes in specific ways to communicate—a simple yes or no—was devised by clever mailers and expanded and codified by postcard companies into guides. Learn about the fascinating system here.

'A Christmas Carol' was originally going to be a political pamphlet

Dickens planned to write a treatise on the day's social issues and had a particularly dry working title: "An Appeal to the People of England on behalf of the Poor Man's Child." After a week, though, he decided to rework the ideas into a fictional story, working at a quick pace so it could be released in time for Christmas. It worked: The story was published on December 19, 1843.

Photography was invented by a romantic artist

The invention of photography changed the landscape of art forever. The first photographs were created by Louis-Jacques-Mandé Daguerre, a romantic era printmaker, by using light and chemistry to expand upon images produced by the earlier camera obscura.

The first Macy’s Thanksgiving Day Parade took place in 1924

It was originally intended to promote Macy’s upcoming holiday sales. Although it took place on Thanksgiving Day, the parade was initially called the Macy’s Christmas Parade—the name didn’t change until 1927.

Richard Cadbury invented the heart-shaped chocolate box in 1868

Richard's father, John Cadbury, founded the Cadbury Brothers chocolate company (now known simply as Cadbury) in 1824. Richard recognized the popularity of ornamental designs (especially for Valentine's Day gifts) and designed the heart-shaped box for the company's chocolates, which became a staple of the holiday.

Hamilton founded what many regard as the first commercial bank in the United States

In 1784, Alexander Hamilton helped found the Bank of New York, which initially operated without a charter, financed early federal operations, provided what is considered the US government's first loan, and became the first stock traded on the New York Stock Exchange.

Handel's 1741 'Messiah' saved him from financial ruin

The piece is widely recognized as a masterpiece and a perennial expression of highbrow culture during the holiday season. The biblically based, English text also broke from opera norms at the time, rewarding him for his risky innovations.

Browse a timeline of the fascinating history of board games in America.

See an image of the earliest surviving coupons used in America

This clip from the "Acquired" podcast shows an image of one of the original Coca-Cola coupons. The hosts argue that the coupons helped popularize Coca-Cola in its early days, making them a key component in the story of one of the world's most iconic brands.

Thomas Cook invented modern tourism

In the mid-1800s, Cook took wealthy Britons on tours of Europe, Africa, the Middle East, and the US, often packaging together transportation, lodging, and food, effectively creating the modern travel agent. He also pioneered travel writing, with “Travellers Handbooks” offering tourists tips for visiting various countries.

The history of the New Year's misunderstanding in England

In the mid-18th century, the legal system in England operated under the understanding that the New Year began March 25. However, the widespread custom remained a Jan. 1 celebration as the public had been practicing for years. Read along to discover the practical issues this discrepancy caused and how the English legal system ended up yielding to public belief.

Thomas Jefferson delivered his 1801 State of the Union address in writing

In 1801, President Jefferson ended in-person State of the Union addresses, feeling they were too monarchial, and sent written messages instead—a practice that lasted until 1913. His first message was written and sent via his secretary, Meriwether Lewis, who later led the Lewis and Clark expedition.

The 19th-century painters of the Hudson River School were among the first American romantics, with portraits that displayed the natural beauty of the young country.

The first H-1 visa was created in 1952

Congress established the original H-1 visa in 1952 through the Immigration and Nationality Act of 1952 to let US employers temporarily hire foreign professionals of "distinguished merit and ability" when qualified American workers were unavailable—a precursor to today's H-1B program.

The first horror movie is believed to be George Méliès' 1986 short 'The Haunted Castle,' which pioneered the use of special effects

English mathematician Ada Lovelace wrote the first computer algorithm a century before computers existed and hypothesized that computing devices would one day be able to compose music—foreseeing the generative AI systems of today.

Sears sold DIY house kits starting at $600 in its famous catalog from 1908 through the 1940s, resulting in roughly 10,000 'Sears and Roebuck houses' being built.

Meet the 56 signers of the Declaration of Independence—most of whom didn't put pen to paper until August 2, 1776—and see their original signatures.

Hear about the 250-year history of the United States Postal Service, complete with some of its strangest deliveries, important innovations, and the figures that made it an American institution.

Elk Cloner, the first computer virus to spread in public, was written as a practical joke by Richard Skrenta, a Pittsburgh high school student.

Mid-century modern graphic designers, known for their bright colors and bold lines in advertising, also found success with children's books.

El Niño, Spanish for 'the boy,' was named after Jesus Christ because the phenomenon resembled the weather changes observed around Christmastime.

See the most iconic photos from four decades of LIFE magazine

The first image of a black hole was captured by creating an Earth-sized virtual observatory from a network of eight radio telescopes.

Jimmy Carter signed a 1978 bill that legalized home brewing, a move credited with kick-starting the craft beer industry.

Poison ivy was sent to Europe in the 1600s as an exotic, ornamental oddity, where it was purposefully grown in the English royal gardens at Kew, the Faculty of Medicine in Paris, and a few other locations.

Graffiti dates back to at least ancient Pompeii, where citizens scrawled messages to one another on public walls

US consumers collectively owe more than $1T to credit card companies—almost as much as they owe in auto loans.

Clever Hans was a 1900s horse that was believed to be able to solve math equations, tell time, and read and comprehend German, until a psychology student discovered how he got his answers.

While the first exchange-traded fund (a 'basket' of different assets that can be bought and sold on a stock exchange) in the US only launched in 1993, the global ETF market has grown to more than $10T in the short time since.

The most expensive ad of all time was for Chanel No. 5 perfume and cost roughly $33M to produce in 2004—about $57M in today's dollars.

The Brothers Grimm were lawyers before they were storytellers, and became interested in fairy tales as they began investigating how rules and customs had been passed down through cultures.

After the Boston Tea Party, colonists switched to coffee, which became the main morning drink for revolutionaries.

Before writing 'Walden,' transcendentalist Henry David Thoreau nearly burned down his hometown with a campfire that grew out of control.

Long before Major League Baseball began allowing instant replay for balls and strikes, an umpire reluctantly used the technology to determine whether a hit was a home run, a move that inadvertently ushered in a new era for the sport.

The Beatles' US label rejected the band's first two singles, 'Please Please Me' and 'From Me to You,' with one executive calling the band 'dead in the water.'

The word 'jazz' evolved from 'jasm,' 19th-century American slang for 'energy'

See how fireworks are made and learn how metals like magnesium and copper are responsible for different colors.