FOOTNOTES

A short piece of text, often numbered, placed at the bottom of a printed page, that adds a comment, citation, reference etc, to a designated part of the main text.

"consult the footnotes for more details"

(by extension) An event of lesser importance than some larger event to which it is related.

"a mere footnote in history"

A qualification to the import of something.

To add footnotes to a text.