Wikipedia has different “namespaces,” seen in the URL.
Use the interactive history browser of the Dorodango article to find out:
title=Mythbusters Polishing a Turd.oldid=?You may be used to persuasive styles of writing. On Wikipedia, you don’t want to persuade. Articles don’t take sides, but describe significant viewpoints published in reliable sources. You want to share facts. Wikipedia lets people interpret those facts for themselves. (WikiEdu 2017)
Wikipedia isn’t a place to share original ideas or opinions. Instead, you should summarize what others have published in reliable sources about the topic. Skip the thesis statement! Don’t offer your own conclusions, interpretations, or analyses.
Good sources have a reputation for fact-checking. That means books published by academic presses, peer-reviewed academic journals, and international newspapers.
You should also use sources that represent widely held viewpoints, rather than authors who write to persuade readers to a particular point of view.
(Wikipedia has a page of frequently discussed sources.)
If you have a conflict of interest about a particular topic, avoid editing articles about it. Don’t write about your instructors or workplace, for example.
Keep to the facts, and let your writing be clear, formal, and impersonal. You aren’t trying to convince readers to agree with you. You’ll want to make sure they trust the information you’re sharing. (WikiEdu 2017)


In 4 groups, fix typos, make links, and add citations. Consult the actual article if you like.
What topics might interest you for your contribution?