Searched for https://atom.archives.unesco.org/ibi-ex-56-15-rapport-provisoire-sur-le-personnel-de-libi
Note: This calendar view maps the number of captures of https://atom.archives.unesco.org/ibi-ex-56-15-rapport-provisoire-sur-le-personnel-de-libi, not how many times the site was actually updated.
Look Up URL in general Internet Archive web collection.