Common Knowledge

You do not have to cite information if it is common knowledge. Common knowledge is information that that is generally well-known.

  • Common knowledge is information that many people may already know.
  • Common knowledge is information that you can look up in many different sources, such as encyclopedias, almanacs, informative Websites, or other resources.

Common Knowledge Examples

Here are some examples of common knowledge information:

  • The state tree of Indiana is the Tulip Tree.
  • The Colorado River runs through the Grand Canyon and was instrumental in the canyon's formation.
  • Dogs have a very good sense of smell.
  • The United States entered World War II after the bombing of Pearl Harbor.

If you do not know whether something is common knowledge or not, err on the side of caution, and cite it.

picture of a dog nose
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