Reasons behind this decision included the overcrowding in Tokyo, the overflow of applicants to Japanese elite universities, a desire of conservative politicians to decrease the influence of liberal teachers and students, and a need to catch up with the West in terms of scientific knowledge.
The decision was based on several factors: Tokyo's high population density, an excessive number of applicants seeking admission to prestigious Japanese universities, a desire among conservative politicians to limit the influence of liberal educators and students, and a need for Japan to advance its scientific knowledge in comparison with Western nations.