Note: This calendar view maps the number of captures of http://www.ibe.unesco.org/es/noticias/progresos-realizados-al-descubrir-la-recopilaci%C3%B3n-de-libros-de-texto-hist%C3%B3ricos-de-la-oie, not how many times the site was actually updated.
Look Up URL in general Internet Archive web collection.