A question: Wikipedia feed

My question is:

How can I access the content of Wikipedia? I guess this is as much a question of business and lawyers?

I'm asking a few places and will update with any satisfactory conclusions. If anything, I'm wondering about some tutorials on law and creative commons, if it's applicable?

It's a bit of a thought experiment. Facebook can pull this data - did they have some great developers or could I essentially manage it with some extensive coding (and do it legally, clearly.)

Assuming there would a feed involved.

In the short term I'm only looking for data on authors and books. Perhaps this is a question for Nielsen?

I can't see an API for Wikipedia, or any relevant information, but I will keep looking. Admittedly I only have a vague grasp of what an API is.

I understand HTML, CSS, PHP to a lesser extent, very well but have less knowledge of Javascript by far. Happy to pick up new ones.

What languages would be needed? Depends on Wiki Media Foundations's setup?

My intention is to create divs to hold that content.

Will post any satisfactory conclusions in updates if received elsewhere.

Building a website now - kind of considering it my laboratory, or TARDIS, whatever.

Link to documentation would earn you the princely sum of my sincere gratitude.

Is there somewhere more appropriate for this question? GITHUB? Other?

Same question on Reddit: http://www.reddit.com/r/web_design/comments/1d9t5f/wikipedia/