Searched for http://www.ibe.unesco.org/es/c%C3%B3mo-trabajamos/di%C3%A1logo-mundial-y-liderazgo-intelectual 
Note: This calendar view maps the number of captures of http://www.ibe.unesco.org/es/c%C3%B3mo-trabajamos/di%C3%A1logo-mundial-y-liderazgo-intelectual, not how many times the site was actually updated.
Look Up URL in general Internet Archive web collection.