Note: This calendar view maps the number of captures of https://aspnet.unesco.org/es-es/Lists/Activities/PublicDisplayForm.aspx?ID=20&RootFolder=%2Fes-es%2FLists%2FActivities&Source=https%3A%2F%2Faspnet.unesco.org%2Fes-es%2FLists%2FNational%2520Coordinators%2FPublicDisplayForm.aspx%3FID%3D3003, not how many times the site was actually updated.
Look Up URL in general Internet Archive web collection.