Note: This calendar view maps the number of captures of https://aspnet.unesco.org/en-us/Lists/Schools/PublicDispForm.aspx?ID=87371&RootFolder=%2Fen%2Dus%2FLists%2FSchools&Source=https%3A%2F%2Faspnet%2Eunesco%2Eorg%2Fen%2Dus%2FLists%2FNational%2520Coordinators%2FPublicDispForm%2Easpx%3FID%3D3043, not how many times the site was actually updated.
Look Up URL in general Internet Archive web collection.