Searched for https://unesdoc.unesco.org/ark:/48223/pf0000375108?posInSet=1&queryId=72b06576-7571-47a2-a703-c17aba0ff745 
Note: This calendar view maps the number of captures of https://unesdoc.unesco.org/ark:/48223/pf0000375108?posInSet=1&queryId=72b06576-7571-47a2-a703-c17aba0ff745, not how many times the site was actually updated.
Look Up URL in general Internet Archive web collection.