Note: This calendar view maps the number of captures of http://portal.unesco.org/en/ev.php-URL_ID%3D33357&URL_DO%3DDO_EMAIL_FRIEND&URL_SECTION%3D201&reload%3D1161940856&EXIT_URL_ID%3D33357&EXIT_URL_DO%3DDO_TOPIC&EXIT_URL_SECTION%3D201.html, not how many times the site was actually updated.
Look Up URL in general Internet Archive web collection.