Area 51: The CIA's U-2 Origins, Secrecy, and Growth of a Restricted Nevada Base
To the point
Area 51 is a secretive U.S. air base in southern Nevada, created in the 1950s to develop the U-2 reconnaissance aircraft, surrounded by a large fenced perimeter and strict restrictions, and its secrecy helped spark long-standing UFO and alien conspiracy theories even as more details about its true purpose gradually became public.
