At the beginning of the Festival of Light and Shade 2015 , a joint press conference of the organizers was held to inform the general public about the creation of a specific protected area. This event is a significant contribution of Slovakia to the International Year of Light, announced by the United Nations General Assembly (International Year of Light and Light-based Technologies - IYL 2015). One of the important components of IYL 2015 is starlight protection . Light pollution, which is a serious environmental problem in modern civilization, makes us see less and less stars in the night sky. Darkness has become a dangerous part of nature and must be protected.