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The First Known Uses of 6 Common Typographic Symbols

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Many of the most common symbols on our keyboards have fascinating origin stories. Some, such as the zero, we now take for granted—yet the idea of denoting an absence of value was not present in Western mathematics until introduced from the East. Other symbols, such as the hashtag or at-sign, had a variety of uses until the internet ushered in a new way of communicating and fixed them with the meanings we know today. Below are six examples of the first known usage and subsequent history of some of the most common typographic symbols.

1. AT SIGN // @

The @ (or at-sign) is usually dated to 1536 in a letter from a Florentine merchant, Francesco Lapi, who used it to mean a unit of wine called “amphorae.” But a Spanish researcher claims to have found an even earlier usage in a 1448 document, where the symbol also referred to a unit of measurement (even today, Spaniards call the @ symbol arroba, which is also a unit of weight, and some other Romance languages have similar dual meanings). Either way, the researchers think that the symbol then moved to Northern Europe, where it eventually gained the meaning of “at the price.” Other explanations have also been offered, but whatever the exact root of the symbol, its meaning eventually became known as shorthand for at, and it was generally used in written financial transactions—for example, in noting “Bob sells James 4 apples @ $1.”

The sign had largely fallen out of use by the early 1970s, when computer scientist Ray Tomlinson was working at what is now BBN Technologies, in Cambridge, Massachusetts. Tomlinson, who was working for the government on a forerunner of the internet, was trying to figure out how to address messages sent from one computer to another when he noticed the little-used @ on his computer keyboard, and used it to send a prototype email. This precedent was soon adopted as the internet developed, and the at-sign is now, of course, central to our lives.

2. ZERO // 0

The absence of a value is a complex concept, one that many ancient civilizations struggled with. The idea of a zero ultimately came to the West from the mathematicians of India, where, as in a few other cultures, zero was initially used as a placeholder, for example to indicate a lack of units, as in the number 101.

The earliest surviving usage of a zero in India has been traced to an ancient mathematical text known as the Bakhshali manuscript, which is held at Oxford’s Bodleian Library. In September 2017, radiocarbon dating indicated that the manuscript was produced as early as the 3rd or 4th century—providing us with the first known usage of zero some 500 years earlier than previously thought. As Oxford’s Bodleian Library says, “the symbol in the Bakhshali manuscript is particularly significant for two reasons. Firstly, it is this dot that evolved to have a hollow centre and became the symbol that we use as zero today. Secondly, it was only in India that this zero developed into a number in its own right, hence creating the concept and the number zero that we understand today."

The manuscript itself was discovered buried in a field in 1881 in what is today Pakistan. Written on 70 delicate leaves of birch bark, historians think it represents a training manual for Silk Road traders, teaching them concepts of arithmetic.

3. HASHTAG // #

Hashtag on an old typewriter key
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The origin of the hashtag (or pound sign as it's traditionally known in the U.S.) comes from scribes writing shorthand for the Latin libra pondo, which translates as "pound by weight." The abbreviation they used was lb, which was sometimes misread as 16. So, scribes took to drawing a line through the top of the two letters, which over time developed into the now familiar #. In the 1960s, the pound sign was chosen by Bell Laboratories to be a function key on their newly designed telephone keypad. (The Bell Labs team fondly nicknamed the symbol the “octothorpe,” possibly in honor of athlete Jim Thorpe.) Fast-forward to 2007, when early Twitter users wanted to be able to group and filter their feeds, so developer Chris Messina suggested they appropriate the method used in IRC (Internet Relay Chat) whereby users employed the pound sign or "hashtag" to signpost what they were chatting about. (Programmers knew the symbol as the hash, which was now being used to "tag" content.) This simple method soon caught on, and today the hashtag has become indelibly linked to the rise of social media.

4. ELLIPSIS // …

Originally, periods of silence were marked textually with a series of hyphens, but today the symbol of choice is the , a.k.a. the ellipsis. Dr. Anne Toner of Cambridge University spent years researching the ellipsis and finally discovered what she thinks is its first use—an English translation of Roman dramatist Terence’s play Andria printed in 1588. Although the play used hyphens instead of dots, the general idea caught on rapidly. (Toner notes that although there are only four “ellipses” in the 1588 translation, there are 29 in the 1627 version.) By the 18th century, dots started to replace the dashes, which an assistant professor from Southeastern University suggests may be connected to a medieval piece of punctuation called subpuncting or underdotting, which generally indicated something was incorrectly copied.

5. AMPERSAND // &

Ampersand symbol on an old metal block
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The ampersand originated in Latin when the word et (meaning and) was written in cursive script as a ligature (in which one or more letters are written together as a single glyph). One of the earliest examples was found daubed in graffiti on the walls of a house in Pompeii, where it was preserved by the eruption of Vesuvius in 79 CE. By the 8th century the ampersand became a recognizably distinct character, but the word ampersand did not come into use until the late 18th/19th century, when English school children would recite "and per se and" meaning “and by itself means and” to help remember the symbol (per se being Latin for "by itself"). One of the most thorough investigations into the typographic history of the ampersand comes courtesy of German graphic designer Jan Tschichold, who in 1953 published The am­persand: its ori­gin and de­vel­op­ment, in which he collected numerous examples of the ampersand from the 1st century onwards, visually charting its developing form.

6. PLUS SIGN // +

A variety of ceramic plus signs
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The plus sign used for addition in mathematics likely derives from a shorthand ligature for the Latin et meaning “and” and was probably in use for a long time before a surviving example appeared in print. One candidate for the earliest surviving usage is in French philosopher and polymath Nicole Oresme's Algorismus proportionum, a manuscript handwritten between 1356 and 1361, although scholars debate whether it's a true plus symbol. The first use of a plus sign in a printed book is more definitive, and can be found in a 1489 edition of Johannes Widmann’s Mercantile Arithmetic. Widmann also uses the minus sign for the first time in print in this volume—although both plus and minus signs relate not to addition and subtraction but to surpluses and deficits in business accounting. After this usage, the plus sign began to appear more frequently in German mathematical texts, and first appeared in an English text in 1557 in Robert Recorde’s The Whetstone of Witte—which also introduced the equals sign.

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15 Heartwarming Facts About Mister Rogers
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Though Mister Rogers' Neighborhood premiered 50 years ago, Fred Rogers remains an icon of kindness for the ages. An innovator of children’s television, his salt-of-the-earth demeanor and genuinely gentle nature taught a generation of kids the value of kindness. In celebration of the groundbreaking children's series' 50th anniversary, here are 15 things you might not have known about everyone’s favorite “neighbor.”

1. HE WAS BULLIED AS A CHILD.

According to Benjamin Wagner, who directed the 2010 documentary Mister Rogers & Me—and was, in fact, Rogers’s neighbor on Nantucket—Rogers was overweight and shy as a child, and often taunted by his classmates when he walked home from school. “I used to cry to myself when I was alone,” Rogers said. “And I would cry through my fingers and make up songs on the piano.” It was this experience that led Rogers to want to look below the surface of everyone he met to what he called the “essential invisible” within them.

2. HE WAS AN ORDAINED MINISTER.

Rogers was an ordained minister and, as such, a man of tremendous faith who preached tolerance wherever he went. When Amy Melder, a six-year-old Christian viewer, sent Rogers a drawing she made for him with a letter that promised “he was going to heaven,” Rogers wrote back to his young fan:

“You told me that you have accepted Jesus as your Savior. It means a lot to me to know that. And, I appreciated the scripture verse that you sent. I am an ordained Presbyterian minister, and I want you to know that Jesus is important to me, too. I hope that God’s love and peace come through my work on Mister Rogers’ Neighborhood.”

3. HE RESPONDED TO ALL HIS FAN MAIL.

Responding to fan mail was part of Rogers’s very regimented daily routine, which began at 5 a.m. with a prayer and included time for studying, writing, making phone calls, swimming, weighing himself, and responding to every fan who had taken the time to reach out to him.

“He respected the kids who wrote [those letters],” Heather Arnet, an assistant on Mister Rogers’ Neighborhood, told the Pittsburgh Post-Gazette in 2005. “He never thought about throwing out a drawing or letter. They were sacred."

According to Arnet, the fan mail he received wasn’t just a bunch of young kids gushing to their idol. Kids would tell Rogers about a pet or family member who died, or other issues with which they were grappling. “No child ever received a form letter from Mister Rogers," Arnet said, noting that he received between 50 and 100 letters per day.

4. ANIMALS LOVED HIM AS MUCH AS PEOPLE DID.

It wasn’t just kids and their parents who loved Mister Rogers. Koko, the Stanford-educated gorilla who understands 2000 English words and can also converse in American Sign Language, was an avid Mister Rogers’ Neighborhood watcher, too. When Rogers visited her, she immediately gave him a hug—and took his shoes off.

5. HE WAS AN ACCOMPLISHED MUSICIAN.

Though Rogers began his education in the Ivy League, at Dartmouth, he transferred to Rollins College following his freshman year in order to pursue a degree in music (he graduated Magna cum laude). In addition to being a talented piano player, he was also a wonderful songwriter and wrote all the songs for Mister Rogers' Neighborhood—plus hundreds more.

6. HIS INTEREST IN TELEVISION WAS BORN OUT OF A DISDAIN FOR THE MEDIUM.

Rogers’s decision to enter into the television world wasn’t out of a passion for the medium—far from it. "When I first saw children's television, I thought it was perfectly horrible," Rogers told Pittsburgh Magazine. "And I thought there was some way of using this fabulous medium to be of nurture to those who would watch and listen."

7. KIDS WHO WATCHED MISTER ROGERS’ NEIGHBORHOOD RETAINED MORE THAN THOSE WHO WATCHED SESAME STREET.

A Yale study pitted fans of Sesame Street against Mister Rogers’ Neighborhood watchers and found that kids who watched Mister Rogers tended to remember more of the story lines, and had a much higher “tolerance of delay,” meaning they were more patient.

8. ROGERS’S MOM KNIT ALL OF HIS SWEATERS.

If watching an episode of Mister Rogers’ Neighborhood gives you sweater envy, we’ve got bad news: You’d never be able to find his sweaters in a store. All of those comfy-looking cardigans were knitted by Fred’s mom, Nancy. In an interview with the Archive of American Television, Rogers explained how his mother would knit sweaters for all of her loved ones every year as Christmas gifts. “And so until she died, those zippered sweaters I wear on the Neighborhood were all made by my mother,” he explained.

9. HE WAS COLORBLIND.

Those brightly colored sweaters were a trademark of Mister Rogers’ Neighborhood, but the colorblind host might not have always noticed. In a 2003 article, just a few days after his passing, the Pittsburgh Post-Gazette wrote that:

Among the forgotten details about Fred Rogers is that he was so colorblind he could not distinguish between tomato soup and pea soup.

He liked both, but at lunch one day 50 years ago, he asked his television partner Josie Carey to taste it for him and tell him which it was.

Why did he need her to do this, Carey asked him. Rogers liked both, so why not just dip in?

"If it's tomato soup, I'll put sugar in it," he told her.

10. HE WORE SNEAKERS AS A PRODUCTION CONSIDERATION.

According to Wagner, Rogers’s decision to change into sneakers for each episode of Mister Rogers’ Neighborhood was about production, not comfort. “His trademark sneakers were born when he found them to be quieter than his dress shoes as he moved about the set,” wrote Wagner.

11. MICHAEL KEATON GOT HIS START ON THE SHOW.

Oscar-nominated actor Michael Keaton's first job was as a stagehand on Mister Rogers' Neighborhood, manning Picture, Picture, and appearing as Purple Panda.

12. ROGERS GAVE GEORGE ROMERO HIS FIRST PAYING GIG, TOO.

It's hard to imagine a gentle, soft-spoken, children's education advocate like Rogers sitting down to enjoy a gory, violent zombie movie like Dawn of the Dead, but it actually aligns perfectly with Rogers's brand of thoughtfulness. He checked out the horror flick to show his support for then-up-and-coming filmmaker George Romero, whose first paying job was with everyone's favorite neighbor.

“Fred was the first guy who trusted me enough to hire me to actually shoot film,” Romero said. As a young man just out of college, Romero honed his filmmaking skills making a series of short segments for Mister Rogers’ Neighborhood, creating a dozen or so titles such as “How Lightbulbs Are Made” and “Mr. Rogers Gets a Tonsillectomy.” The zombie king, who passed away in 2017, considered the latter his first big production, shot in a working hospital: “I still joke that 'Mr. Rogers Gets a Tonsillectomy' is the scariest film I’ve ever made. What I really mean is that I was scared sh*tless while I was trying to pull it off.”

13. ROGERS HELPED SAVE PUBLIC TELEVISION.

In 1969, Rogers—who was relatively unknown at the time—went before the Senate to plead for a $20 million grant for public broadcasting, which had been proposed by President Johnson but was in danger of being sliced in half by Richard Nixon. His passionate plea about how television had the potential to turn kids into productive citizens worked; instead of cutting the budget, funding for public TV increased from $9 million to $22 million.

14. HE ALSO SAVED THE VCR.

Years later, Rogers also managed to convince the Supreme Court that using VCRs to record TV shows at home shouldn’t be considered a form of copyright infringement (which was the argument of some in this contentious debate). Rogers argued that recording a program like his allowed working parents to sit down with their children and watch shows as a family. Again, he was convincing.

15. ONE OF HIS SWEATERS WAS DONATED TO THE SMITHSONIAN.

In 1984, Rogers donated one of his iconic sweaters to the Smithsonian’s National Museum of American History.

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5 Things You Might Not Know About Ansel Adams

You probably know Ansel Adams—who was born on February 20, 1902—as the man who helped promote the National Park Service through his magnificent photographs. But there was a lot more to the shutterbug than his iconic, black-and-white vistas. Here are five lesser-known facts about the celebrated photographer.

1. AN EARTHQUAKE LED TO HIS DISTINCTIVE NOSE.

Adams was a four-year-old tot when the 1906 San Francisco earthquake struck his hometown. Although the boy managed to escape injury during the quake itself, an aftershock threw him face-first into a garden wall, breaking his nose. According to a 1979 interview with TIME, Adams said that doctors told his parents that it would be best to fix the nose when the boy matured. He joked, "But of course I never did mature, so I still have the nose." The nose became Adams' most striking physical feature. His buddy Cedric Wright liked to refer to Adams' honker as his "earthquake nose.

2. HE ALMOST BECAME A PIANIST.

Adams was an energetic, inattentive student, and that trait coupled with a possible case of dyslexia earned him the heave-ho from private schools. It was clear, however, that he was a sharp boy—when motivated.

When Adams was just 12 years old, he taught himself to play the piano and read music, and he quickly showed a great aptitude for it. For nearly a dozen years, Adams focused intensely on his piano training. He was still playful—he would end performances by jumping up and sitting on his piano—but he took his musical education seriously. Adams ultimately devoted over a decade to his study, but he eventually came to the realization that his hands simply weren't big enough for him to become a professional concert pianist. He decided to leave the keys for the camera after meeting photographer Paul Strand, much to his family's dismay.

3. HE HELPED CREATE A NATIONAL PARK.

If you've ever enjoyed Kings Canyon National Park in California, tip your cap to Adams. In the 1930s Adams took a series of photographs that eventually became the book Sierra Nevada: The John Muir Trail. When Adams sent a copy to Secretary of the Interior Harold Ickes, the cabinet member showed it to Franklin Roosevelt. The photographs so delighted FDR that he wouldn't give the book back to Ickes. Adams sent Ickes a replacement copy, and FDR kept his with him in the White House.

After a few years, Ickes, Adams, and the Sierra Club successfully convinced Roosevelt to make Kings Canyon a national park in 1940. Roosevelt's designation specifically provided that the park be left totally undeveloped and roadless, so the only way FDR himself would ever experience it was through Adams' lenses.

4. HE WELCOMED COMMERCIAL ASSIGNMENTS.

While many of his contemporary fine art photographers shunned commercial assignments as crass or materialistic, Adams went out of his way to find paying gigs. If a company needed a camera for hire, Adams would generally show up, and as a result, he had some unlikely clients. According to The Ansel Adams Gallery, he snapped shots for everyone from IBM to AT&T to women's colleges to a dried fruit company. All of this commercial print work dismayed Adams's mentor Alfred Stieglitz and even worried Adams when he couldn't find time to work on his own projects. It did, however, keep the lights on.

5. HE AND GEORGIA O'KEEFFE WERE FRIENDS.

Adams and legendary painter O'Keeffe were pals and occasional traveling buddies who found common ground despite their very different artistic approaches. They met through their mutual friend/mentor Stieglitz—who eventually became O'Keeffe's husband—and became friends who traveled throughout the Southwest together during the 1930s. O'Keeffe would paint while Adams took photographs.

These journeys together led to some of the artists' best-known work, like Adams' portrait of O'Keeffe and a wrangler named Orville Cox, and while both artists revered nature and the American Southwest, Adams considered O'Keeffe the master when it came to capturing the area. 

“The Southwest is O’Keeffe’s land,” he wrote. “No one else has extracted from it such a style and color, or has revealed the essential forms so beautifully as she has in her paintings.”

The two remained close throughout their lives. Adams would visit O'Keeffe's ranch, and the two wrote to each other until Adams' death in 1984.

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