==A few section changes== 

 When I was reading through the article, the contents of "Historical view and usage" threw me for a loop because most of the section discussed the nature/ontology of the Trinity in the modern (unqualified) sense. The bit on history seemed like a good lead in, so I changed the second level heading to "Ontology of the Trinity" and made "Historical view and usage" the first subsection. 

 The bit on "Christian Life and the Blessed Trinity" also seemed out of place as that section discusses the implications or application of the concept of Trinity, and not the nature of Trinity itself. So, I moved that to be a second level section after the section on dissent, figuring that it would read best as "point/counterpoint" and then onto a new subject. 

 Speaking of sections, it seems that the "Historical view and usage" section should be merged with the "Historical development" section. I thought I'd leave this change to the more involved authors, though.