Conversation so far:
what is the purpose of an editorial in a newspaper
An editorial is a statement in a newspaper that expresses the opinion of the editors or owners on a subject of particular interest
why are newspaper editorials unsiged
The reason editorials are not signed is that individual editorials are supposed to reflect the collective judgment of the entire editorial board. They are also supposed to be philosophically consistent.
where is the editorial article placed
Editorials are typically published on a dedicated page, called the editorial page, which often features letters to the editor from members of the public

Question: who invented the article
Self-contained rewrite: who invented the editorial article