Your Edits Responding to your inquiry Your edits do not explicitly cite what is referenced in the external web site which you use In no where in the Britannica article does it state that John Larson invented the polygraph in 1921 Secondly Post it notes atomic bombs etc are nothing but trivial details which have no absolute relation to the topic of the article the polygraph My suggestion to you Add your website as an external link at the bottom of the article If readers want to learn more about what is contained on Britannica s 2003 list then they ll have that option However that edit which you consistently add does not add any value to the introduction of an article on the polygraph