Plus, you guys can refer to the site below for the other languges also :
http://en.wikipedia.org/wiki/At_sign
Enjoy surfing! ^_^
0 voted
April 23, 2008
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Answered
Wow, this is very insteresting question! ^_^
In Korean it is called golbaeng-i (골뱅이; bai top shells), a dialectal form of daseulgi (다슬기), a small freshwater snail with no tentacles. [ from wikipedia ]
Because, we Korean think, '@' looks like it.