Note: This calendar view maps the number of captures of http://whc.unesco.org/en/decisions/&action%3Dlist&searchDecisions%3D&search_decision%3D&search_focalpoint%3D&search_session_decision%3D18&search_status%3D&search_theme%3D, not how many times the site was actually updated.
Look Up URL in general Internet Archive web collection.