Searched for https://unesdoc.unesco.org/ark:/48223/pf0000373741_fre?posInSet=1&queryId=1123802c-7d03-4896-9d9c-f8a1abf0cb02 
Note: This calendar view maps the number of captures of https://unesdoc.unesco.org/ark:/48223/pf0000373741_fre?posInSet=1&queryId=1123802c-7d03-4896-9d9c-f8a1abf0cb02, not how many times the site was actually updated.
Look Up URL in general Internet Archive web collection.