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.
It is the remnant of the notochord. There is one disc between each pair of vertebrae, except for the first cervical segment, the atlas. The atlas is a ring around the roughly cone-shaped extension of the axis (second cervical segment).