A century ago higher education appeared to be a facing a technological revolution. The proliferation of a contemporary communication system—the United States Postal Service—a powerful innovation made education possible beyond the physical boundaries of university campuses. In order to enroll in a class in higher education, now one only needed a mailbox. Frederick Jackson Turner, legendary University of Wisconsin historian, claimed at the time that distance education was available to all Americans across the country. Universities realized that the US Postal Service provided educational opportunities to students and financial opportunities for themselves. Colleges and universities began to develop correspondence courses and establish correspondence departments. Courses at a distance, by mail, had become the craze by the 1920s. Four times as many students were enrolling in correspondence courses as were enrolling in all other higher education courses combined (Carr, 2012).