Looks like this article is progressing nicely in my last edit I caught a few errors but couldnt figure out how to fix the last sentence of the History of paper planes section  Perhaps the most accepted version of the creation was in  when Jack Northrop used in the this piece of origami s to test out paper planes so that he could discover ideas for flying reallife aeroplanes  The sentence falls apart after when Jack Northrop used and it isnt clear what the creation is referring to I presume it should read the creation of a paper plane but the rest of it is muddled