纽约为什么叫金苹果

The "Big Apple" is a nickname or alternate toponym for New York City. Its popularity since the 1970s is due to a promotional campaign by the New York Convention and Visitor's Bureau. Its earlier origins are less clear.

In the 1920s the New York race tracks were the cream of the crop, so going to the New York races was a big treat, the prize, allegorically a Big Apple.

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传说宙斯与赫拉的定情物——金苹果放在纽约

纽约原来有一个乐队叫金苹果，后来红遍美国，纽约有了商机，所以叫金苹果。好像是，尽力了。

please have a look the below link, which will tell you why the NK called Big Apple, I think it call to gloden, because of it's a city full of opportunity and temptation

http://www.answers.com/topic/big-apple

纽约别称大苹果 Big Apple
中文的解释：http://hk.knowledge.yahoo.com/question/?qid