In Italian, the symbol represents one amphora, a unit of weight and volume based upon the capacity of the standard amphora jar, and entered modern meaning and use as "at the rate of" or "at price of" in northern Europe.Until now the first historical document containing a symbol resembling a @ as a commercial one is the Spanish "Taula de Ariza", a registry to denote a wheat shipment from Castile to Aragon in 1448. While company promoters have claimed that it may from now on be illegal for other commercial interests to use the At-sign,.It is generally seen that Russian women like to have foreign husbands.
Why it was used in this context is still a mystery.
In terms of the commercial character of the at sign, there are several theories pending verification.
Whatever the origin of the @ symbol, the history of its usage is more well-known: it has long been used in Spanish and Portuguese as an abbreviation of arroba, a unit of weight equivalent to 25 pounds, and derived from the Arabic expression of "a quarter" (الربع pronounced ar-rubʿ).).
Currently, the word arroba means both the at-symbol and a unit of weight.
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