Searched for https://unesdoc.unesco.org/ark:/48223/pf0000371188?posInSet=1&queryId=3f2fa233-444b-4e87-a5c4-0277499c4be4 
Note: This calendar view maps the number of captures of https://unesdoc.unesco.org/ark:/48223/pf0000371188?posInSet=1&queryId=3f2fa233-444b-4e87-a5c4-0277499c4be4, not how many times the site was actually updated.
Look Up URL in general Internet Archive web collection.