Privacy is an issue of profound importance around the world. In nearly every nation, numerous statutes, constitutional rights, and judicial decisions seek to protect privacy. But - nobody can articulate what it means. Currently, privacy is a sweeping concept, encompassing (among other things) freedom of thought, control over one’s body, solitude in one’s home, control over personal information, freedom from surveillance, protection of one’s reputation, and protection from searches and interrogations. Philosophers, legal theorists, and jurists have frequently lamented the great difficulty in reaching a satisfying conception of privacy. Without history we can not understanding privacy.