For these forty-four years, Keio Gijuku experienced four crises, of which the first one was of learning tradition, the second of school finance, or income and expence, the third of special subjects of study, and the fourth of system of education. Keio Gijuku was the corporate school, which was incorporated with the young scholars who had the aim to learn the Western sciences. The members of the school co-operated to break the crises, which otherwise would have forced the school to close. In the last year (1901) of the critical history of the school, the chief member of the corporation, Yukichi Fukuzawa died, but the foundation was rather safe and remained unmoved during the following forty years after his death.