Editing Wikipedia (section)

=== Content policies and guidelines ===
{{Self-reference|"No original research" redirects here. For the Wikipedia policy, see [[Wikipedia:No original research]].}}
According to the rules on the English Wikipedia community, each entry in Wikipedia must be about a topic that is [[wikt:encyclopedic|encyclopedic]] and is not a dictionary entry or dictionary-style.<ref name=":5" group="W">[[Wikipedia:Citing sources]]: "Wikipedia's verifiability policy requires inline citations for any material challenged or likely to be challenged, and for all quotations, anywhere in article space."</ref> A topic should also meet [[notability in the English Wikipedia|Wikipedia's standards of "notability"]], which generally means that the topic must have been covered in mainstream media or major academic journal sources that are independent of the article's subject.<ref name=":9" group="W">[[Wikipedia:Notability]]</ref> Further, Wikipedia intends to convey only knowledge that is already established and recognized.<ref name="NOR" group="W" /> It must not present original research.<ref group="W">[[Wikipedia:No original research]]: "Wikipedia articles must not contain original research. The phrase "original research"... is used on Wikipedia to refer to material—such as facts, allegations, and ideas—for which no reliable, published sources exist."</ref> A claim that is likely to be challenged requires a reference to a reliable source, as do all quotations.<ref name=":5" group="W" /> Among Wikipedia editors, this is often phrased as "verifiability, not truth" to express the idea that the readers, not the encyclopedia, are ultimately responsible for checking the truthfulness of the articles and making their own interpretations.<ref group="W">[[Wikipedia:Verifiability]]: "Readers must be able to check that any of the information within Wikipedia articles is not just made up. This means all material must be attributable to reliable, published sources. Additionally, quotations and any material challenged or likely to be challenged must be supported by inline citations."</ref> This can at times lead to the removal of information which, though valid, is not properly sourced.<ref name="IHT WP valid info wrong removable 1">{{cite news |last=Cohen |first=Noam|author-link=Noam Cohen |date=August 9, 2011 |title=For inclusive mission, Wikipedia is told that written word goes only so far |page=18 |newspaper=[[International Herald Tribune]]}}</ref> Finally, Wikipedia must not take sides.<ref name="autogenerated2" group="W" /> As Wikipedia policies changed over time, and became more complex, their number has grown. In 2008, there were 44 policy pages and 248 guideline pages; by 2013, scholars counted 383 policy pages and 449 guideline pages.<ref name=":0">{{Cite journal |last1=Ren |first1=Yuqing |last2=Zhang |first2=Haifeng |last3=Kraut |first3=Robert E. |date=February 29, 2024 |title=How Did They Build the Free Encyclopedia? A Literature Review of Collaboration and Coordination among Wikipedia Editors |url=https://dl.acm.org/doi/10.1145/3617369 |journal=ACM Transactions on Computer-Human Interaction |language=en |volume=31 |issue=1 |pages=1–48 |doi=10.1145/3617369 |issn=1073-0516}}</ref>