Let's consider this post as a study case. I think, the question is fully answered on the wikipedia page linked in the comments.
A one-link-only answer is usually not accepted and I don't feel like rephrasing everything that is said on the wikipedia page. So how can we deal with this question? We cannot close a post because the answer exists somewhere else. We cannot close a post as a duplicate of a wiki page. Should it be closed as too broad? Should someone write a one-link-only answer? Should we leave this post unanswered?