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Few people know that the @ symbol, the familiar icon in every email address today, existed centuries before the digital era. Its history traces a long journey from a practical recording tool in commerce and manuscripts to a central element of global electronic communication.
Historical documents indicate that the @ symbol was first recorded in 1536 in a letter by a merchant in Florence, Italy. In that text, @ was used to mean “at a price”—for example, a unit of goods sold at a specific price.
The discovery was published in 2000 by Giorgio Stabile, a professor of the history of science at La Sapienza University, and was presented as a milestone in establishing a clearer origin for the symbol.
Before that, multiple theories circulated about where the symbol came from. One widely cited explanation links @ to the Latin word “ad,” meaning “at,” “to,” or “toward.” Another theory suggests that medieval scribes developed abbreviated signs to save time and effort when copying texts by hand, with @ potentially emerging through simplification of writing.
Additional hypotheses include the idea that @ replaced the letter A in old Bulgarian manuscripts, or that it derived from the ornate French capital “à.” Some rarer evidence points to even earlier usage: in a Bulgarian translation of a Greek chronicle from 1345, @ was used once to replace the letter A in the word “Amen.” Because this usage was not repeated, researchers have not been able to confirm a convincing explanation.
In the 19th century, the @ symbol became more widely used in commerce. Accountants and shopkeepers used it in ledgers to denote price, such as “10 units @ $5.” This practical role helped lead to the symbol being included on typewriter keyboards in that era, even though it had no direct connection to information technology at the time.
The major shift toward modern usage came in 1971, when computer scientist Ray Tomlinson developed the first email system on ARPANET, the precursor to the Internet. He needed a symbol to separate the user name from the host address in email and to avoid confusion with other characters.
Tomlinson chose @ because it was a symbol rarely used in everyday language or programming. That decision transformed @ from a nearly forgotten commercial notation into the key element of the global electronic communication system.
Since then, @ has become indispensable in modern life, appearing in billions of email addresses and on social platforms. Beyond its functional role, the symbol also reflects the intersection of history, language, and technology.
In different countries, @ is known by various names that evoke distinct imagery, including “monkey tail” in Afrikaans, “elephant’s trunk” in Danish, “snail” in French, and “puppy” in Russian.
From a simple commercial mark in ancient ledgers to the defining symbol of the digital age, the story of @ shows how small details can shape an era.
References: IFLScience
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