pop & funWikipedia1448–1536 · Seville, Spain

The @ symbol was a merchant's unit-of-measure mark for centuries before it reached keyboards

the gist

The @ sign began as a commercial shorthand, not a decoration. A 1536 Florentine trade letter from Seville used it to mean amphora, a standard jar-based unit for measuring wine and other goods, and a Spanish wheat record from 1448 shows a similar symbol. Its name in Spanish and Portuguese, arroba, came from a weight unit of about 25 pounds, borrowed from an Arabic word meaning a quarter. Merchants used it to abbreviate those units long before anyone thought of it as a typographic symbol.

so what

The @ sign carried commercial meaning for centuries before email gave it a new job, which shows how everyday symbols often hide centuries of practical use. The Museum of Modern Art added it to its design collection in 2010, and it appeared in its 2025 Pirouette exhibition of design icons.

fun fact

The Museum of Modern Art added the @ symbol to its design collection in 2010.

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