U letter
UNESCO
United Nations Educational, Scientific and Cultural Organisation. Is a specialised agency of the United Nations (UN) aimed at promoting world peace and security through international cooperation in education, arts, sciences, and culture. It was founded in 1945. As a focal point for world culture and science, UNESCO's activities have broadened over the years; it assists in the translation and dissemination of world literature, helps establish and secure World Heritage Sites of cultural and natural importance, works to bridge the worldwide digital divide, and creates inclusive knowledge societies through information and communication. UNESCO has launched several initiatives and global movements, such as Education For All, to further advance its core objectives.
Underwater cultural heritage
Witness of our common memory, for several millennia, that lies underneath, seas, lakes and rivers etc. They hide from view and protect under the surface a priceless heritage, largely unknown and underestimated. No one can protect what is unknown. Though we can have standards for it, how to deal with underwater cultural heritage it still can be a problem as it lays underneath the water, and we need to keep it safe from the different predators and danger.
Usurpation
Wrongful or illegal encroachment, infringement, or seizure. It has a negative connotation in architecture, which means interventions into building sites or even building without building permits. Usurpation is also any non-professional intervention and activity in monuments and other cultural heritage.