Searched for https://unesdoc.unesco.org/ark:/48223/pf0000372467?posInSet=14&queryId=bae28d1e-cca9-4653-9602-4d88342a5e15 
Note: This calendar view maps the number of captures of https://unesdoc.unesco.org/ark:/48223/pf0000372467?posInSet=14&queryId=bae28d1e-cca9-4653-9602-4d88342a5e15, not how many times the site was actually updated.
Look Up URL in general Internet Archive web collection.