{"id":59796,"date":"2026-03-13T11:00:00","date_gmt":"2026-03-13T05:30:00","guid":{"rendered":"https:\/\/officechai.com\/?p=59796"},"modified":"2026-03-07T14:35:52","modified_gmt":"2026-03-07T09:05:52","slug":"how-ray-tomlinson-picked-the-symbol-for-emails-in-1971-thats-still-widely-used-today","status":"publish","type":"post","link":"https:\/\/officechai.com\/stories\/how-ray-tomlinson-picked-the-symbol-for-emails-in-1971-thats-still-widely-used-today\/","title":{"rendered":"How Ray Tomlinson Picked The @ Symbol For Emails In 1971 That\u2019s Still Widely Used Today"},"content":{"rendered":"\n

Many of the building blocks of the internet \u2014 which we now consider to be a part and parcel of the service \u2014 were made by simple design choices<\/a> by single individuals many years ago.<\/p>\n\n\n\n

The humble @ symbol that sits between your name and your email domain is one such example. It is, by any measure, one of the most typed characters on Earth today \u2014 appearing in billions of email addresses, social media handles, and digital logins every single day. Yet the story of how it got there is a quietly remarkable one, tracing back to a single engineer\u2019s practical decision in a Cambridge laboratory in 1971.<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

The Engineer Who Changed How the World Communicates<\/h2>\n\n\n\n

Raymond Samuel Tomlinson was born on April 23, 1941, in Amsterdam, New York, and grew up in the small, unincorporated village of Vail Mills. He earned his Bachelor of Science in electrical engineering before going on to complete a master\u2019s degree in the same field at MIT. Two years after graduating, he joined the technology and research firm Bolt, Beranek and Newman (BBN) \u2014 a company that had already been awarded the contract to build ARPANET, the U.S. government\u2019s pioneering computer network and the direct precursor to the modern internet.<\/p>\n\n\n\n

It was at BBN that Tomlinson would make his mark on history. In 1971, he was working on ARPANET and became fascinated by a specific limitation of the network: users could leave messages for one another on the same computer, but there was no way to send a message to someone on a different machine. \u201cI had written a couple of programs to transfer files,\u201d Tomlinson later recalled<\/a>, \u201cand it occurred to me that since the mailbox that I was sending these messages to was nothing more than a file, I could send that file across the network instead of keeping it within the same machine. And so I put two programs together, modify the code a little bit.\u201d<\/p>\n\n\n\n

The result was the world\u2019s first networked email system \u2014 a breakthrough that would, within decades, become the backbone of global business and personal communication.<\/p>\n\n\n\n

The Mechanics of a Historic Decision<\/h2>\n\n\n\n

The technical challenge Tomlinson faced was straightforward but significant: the new email system needed a way to distinguish a user\u2019s local account name from the name of the host computer they were sending to. Without a separator, the system would have no way to route a message to its destination across the network.<\/p>\n\n\n\n

Tomlinson\u2019s solution was elegant in its simplicity. He scanned the keyboard of his Model 33 teletype and looked for a character that was not being used in computer programming or in people\u2019s names. \u201cI was mostly looking for a symbol that wasn\u2019t used much,\u201d he later told Smithsonian magazine. The @ symbol \u2014 sitting largely forgotten on the keyboard \u2014 fit the bill perfectly. It was not used in usernames, not used in TENEX programming commands, and it carried an intuitive meaning: it could literally be read as \u201cuser at host.\u201d<\/p>\n\n\n\n

The format he created, user@host, remains the global standard for email addresses to this day \u2014 unchanged over more than half a century. When Tomlinson demonstrated the system to a colleague at BBN, his reaction was not triumphant. \u201cDon\u2019t tell anyone!\u201d he reportedly said. \u201cThis isn\u2019t what we\u2019re supposed to be working on.\u201d The development of email had not been assigned to him by his employer; he had simply been, in his own words, \u201clooking for something to do.\u201d<\/p>\n\n\n\n

The first email Tomlinson sent was transmitted in late 1971 between two PDP-10 computers sitting side by side in the same room at BBN\u2019s Cambridge laboratory. The content of the message was never preserved. When asked about it decades later, Tomlinson could only guess that it was likely \u201cQWERTYUIOP\u201d \u2014 the top row of the keyboard \u2014 or a similar test string. \u201cThe test messages were entirely forgettable and I have, therefore, forgotten them,\u201d he said. In other words, the message that inaugurated the age of digital communication was purely functional and completely unremarkable.<\/p>\n\n\n\n

A Symbol With a 500-Year History<\/h2>\n\n\n\n

What makes the story of the @ symbol even more remarkable is that, while Tomlinson rescued it from near-obscurity in 1971, the character itself is far older than computers. Its origins are a matter of some scholarly debate, but the earliest documented use dates to May 4, 1536, in a letter written by a Florentine merchant named Francesco Lapi. Writing from Seville to Rome, Lapi used the symbol as shorthand for \u201camphora\u201d \u2014 a traditional clay jar used to measure wine \u2014 noting the price of a quantity of wine in Peru.<\/p>\n\n\n\n

The discovery of this document was made in 2000 by professor Giorgio Stabile of La Sapienza University in Rome, who traced the looping script around the letter \u201ca\u201d to merchant writing styles common in Florence during the Renaissance. From Italy, the symbol spread along trade routes throughout Europe, where merchants adopted it to mean \u201cat the rate of\u201d \u2014 a usage still seen today in pricing notation such as \u201c10 items @ $5.\u201d<\/p>\n\n\n\n

Some scholars posit an even older origin: that medieval monks created the symbol as a shorthand for the Latin word \u201cad,\u201d meaning \u201ctoward,\u201d by combining the letter \u201ca\u201d with a stylized \u201cd\u201d \u2014 much in the same way the ampersand (&) evolved from the Latin \u201cet.\u201d Whatever its precise origin, by the time typewriters arrived in the 19th century, the @ symbol had been incorporated into keyboards as a commercial notation, even though most typists rarely had occasion to use it.<\/p>\n\n\n\n

It was precisely this obscurity that made it attractive to Tomlinson. A character that nobody was using was the perfect choice for a new purpose.<\/p>\n\n\n\n

Recognition, Legacy, and a Symbol in a Museum<\/h2>\n\n\n\n

Tomlinson remained at BBN \u2014 later acquired by Raytheon \u2014 for his entire career, serving as a principal scientist until his death. He was, by all accounts, a modest man who was somewhat bemused by the scale of what he had created. A company spokesman described him as \u201chumble and modest,\u201d and journalist Adrienne LaFrance of The Atlantic called him a \u201cself-professed Luddite\u201d who did not own a mobile phone and had only recently joined Facebook.<\/p>\n\n\n\n

The broader world gradually caught up to the significance of his invention. In 2010, the Museum of Modern Art in New York made the extraordinary decision to acquire the @ symbol for its architecture and design collection \u2014 crediting Tomlinson \u2014 describing the decision as recognition of a \u201cdefining symbol of the computer age\u201d and an act of \u201cextraordinary elegance and economy.\u201d In 2012, he was inducted into the Internet Hall of Fame by the Internet Society. The Internet Hall of Fame noted that his email program \u201cbrought about a complete revolution, fundamentally changing the way people communicate.\u201d<\/p>\n\n\n\n

He is also credited with the invention of the TCP three-way handshake \u2014 the foundational protocol that underlies HTTP and much of the modern internet. The Boston Globe ranked him number four on its list of the top 150 MIT-related ideas, inventions, and innovators of all time.<\/p>\n\n\n\n

Ray Tomlinson died of a heart attack on March 5, 2016, at his home in Lincoln, Massachusetts, at the age of 74. News of his passing drew tributes from across the technology world, including from Vint Cerf, co-developer of the TCP\/IP protocol. In 2022, April 23 \u2014 Tomlinson\u2019s birthday \u2014 was officially designated as national Email Day in his honor.<\/p>\n\n\n\n

The Enduring Power of a Single Character<\/h2>\n\n\n\n

Today, the number of active email accounts<\/a> worldwide exceeds 5.6 billion. Every single one of them bears the @ symbol that Tomlinson chose in 1971. In an era when communication technologies are constantly being disrupted, superseded, or replaced, that is a remarkable testament to the staying power of one engineer\u2019s instinctive choice.<\/p>\n\n\n\n

The story of the @ symbol is, in the end, a story about how transformative technology often begins not with grand ambition, but with a quiet, practical decision \u2014 the kind made by a single person at a keyboard, wondering what a forgotten character might be good for. From a 16th-century Florentine merchant measuring wine, to a 20th-century engineer connecting computers, to billions of people sending messages across the globe every second, the journey of @ is one of the most quietly astonishing in the history of communication.<\/p>\n","protected":false},"excerpt":{"rendered":"

Many of the building blocks of the internet \u2014 which we now consider to be a part and parcel of the service \u2014…<\/p>\n","protected":false},"author":1,"featured_media":59797,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[46],"tags":[],"class_list":["post-59796","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-stories"],"yoast_head":"\nHow Ray Tomlinson Picked The @ Symbol For Emails In 1971 That\u2019s Still Widely Used Today<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" 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