In 1950, David Manning White, a journalism professor at Boston University, looked at the factors an editor takes into consideration when deciding which news will make the paper and which news will not; intending to examine how a "gate keeper" examines his "gate" within a channel of mass communication. White contacted an editor, a man in his mid-40s with 25 years of experience, whom he calls "Mr. Gates." Mr. Gates was the wire editor of a morning newspaper in a mid-west city of 100,000 that had a circulation of 30,000. During the case study, Mr. Gates retained all copy that he rejected from the paper for a week. At the end of his shift, he made notes on why that story was rejected, assuming he could still remember the reason.