The term Generation X has been used at various times throughout history to describe alienated youth. In the 1950s, Hungarian photographer Robert Capa used Generation X as the title for a photo-essay about young men and women growing up immediately following the Second World War. In 1976, English musician Billy Idol used the moniker as the name for a punk rock band.
An atlas is defined as a collection of various maps of the Earth or a specific region of the Earth such as the United States or Europe.
a book of maps: Atlas supporting the earth was often pictured on the front page of such books; a book of tables, charts, illustrations, etc. on a specific subject or subjects: an anatomical atlas [a-] Anat. the topmost vertebra of the neck; Archit. atlantes; Origin of Atlas