Searched for http://www.unesco.org/new/en/tashkent/about-this-office/single-view/news/promoting_quality_reporting_on_environmental_journalism_in_uzbekistan/
Note: This calendar view maps the number of captures of http://www.unesco.org/new/en/tashkent/about-this-office/single-view/news/promoting_quality_reporting_on_environmental_journalism_in_uzbekistan/, not how many times the site was actually updated.
Look Up URL in general Internet Archive web collection.