not of reference that corresponds to a number in the written text and is placed below on printed page?

Here's a breakdown:

* Footnotes are brief notes or explanations placed at the bottom of a page, often referenced by superscript numbers within the text.

* They are used to provide additional information, clarification, or citations without interrupting the flow of the main text.

Let me know if you'd like to explore other aspects of footnotes or have any other questions!