Google first releases the map services and makes it worldwide, and then microsoft, yahoo released their map services as well. in my recent post , I told everyone google chose the srid ESPG:900913 as its projection. But why? why this number? As we all know, there would be a lot of projections could be chose. and google could set its ESPG as any number if he want even if google abided the international rules. So, why?

It would be a little interesting, everybody just look at “900913”， which looks like “google”. these two words are so similar in their forms.

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