jquery/learn.jquery.com — pull request #523 by githubshrek (2014-06-30 12:47:11+00:00)
Title: Move the section on DOM earlier in the tutorial

DOM is already used earlier in the tutorial (e.g. http://learn.jquery.com/using-jquery-core/selecting-elements/) without being defined. The description here is great, but it should go before the first time in the tutorial when it is used. I think it probably deserves its own page.