<P> `` The Right to Privacy '' ( 4 Harvard L.R. 193 ( Dec. 15 , 1890 ) ) is a law review article written by Samuel Warren and Louis Brandeis , and published in the 1890 Harvard Law Review . It is `` one of the most influential essays in the history of American law '' and is widely regarded as the first publication in the United States to advocate a right to privacy , articulating that right primarily as a `` right to be let alone '' . </P>
who popularized the definition of privacy as the right to be free from intrusion
Samuel Warren and Louis Brandeis