Acceptable Sources - Verifiability and Other Principles - Original Research

Original Research

Further information: Wikipedia:No original research

The "No original research" policy (NOR) is closely related to the Verifiability policy. Among its requirements are:

  1. All material in Wikipedia articles must be attributable to a reliable published source. This means that a source must exist for it, whether or not it is cited in the article.
  2. Sources must support the material clearly and directly: drawing inferences from multiple sources to advance a novel position is prohibited by the NOR policy.
  3. Base articles largely on reliable secondary sources. While primary sources are appropriate in some cases, relying on them can be problematic. For more information, see the Primary, secondary, and tertiary sources section of the NOR policy, and the Misuse of primary sources section of the BLP policy.

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