Searched for http://whc.unesco.org/en/soc/&action%3Dlist&id_search_state%3D168&index%3D61&maxrows%3D20
Note: This calendar view maps the number of captures of http://whc.unesco.org/en/soc/&action%3Dlist&id_search_state%3D168&index%3D61&maxrows%3D20, not how many times the site was actually updated.
Look Up URL in general Internet Archive web collection.