Searched for https://cros-legacy.ec.europa.eu/content/item-7-ess-vision-2020-portfolio-progress-and-next-steps_en 
Note: This calendar view maps the number of captures of https://cros-legacy.ec.europa.eu/content/item-7-ess-vision-2020-portfolio-progress-and-next-steps_en, not how many times the site was actually updated.
Look Up URL in general Internet Archive web collection.