I suppose it is called a sandbox because this is a place to play around and get used to playing well with others.

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The first article I would like to help improve is one about STM. I am practicing adding references.[1] This is another sentence with a reference to a Wikipedia article.[2] This sentence is validated by an external reference.[3]

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--Rmedernach (talk) 14:14, 22 November 2014 (UTC)