|1889||Nihon Law School (present: College of Law) founded.
The Founder was the then Minister of Justice, Count Akiyoshi YAMADA.
Count Kentaro KANEKO, LL.D. (Hon.), the later Minister of Justice, inaugurated as the First Director.
|1893||The first Graduation Ceremony held. Baron Yasukowa MATSUOKA, the later Minister of Agriculture and Commerce, inaugurated as the Second Director (later, First President).
Alumni Association organized.
|1898||Higher Courses established and the graduates awarded the Degree of Bachelor of Japanese Law.|
|1901||Higher Teachers’ department (present: College of Humanities and Sciences) established.|
|1903||Renamed to Nihon University|
|1904||Become a university under the Specialized School Order.
Commerce department (present: College of Economics and College of Commerce) established.
|1906||The first student sent to Europe. The first Foundation Anniversary Ceremony held.|
|1920||Become a university based on the University Order. The first female students granted admission.
The School Song composed.
School of Higher Engineering (present: College of Science and Technology) established.
|1921||Aesthetic department (present: College of Art) established. Toyo Dental School (founded 1916, present: School of Dentistry) absorbed into Nihon University. The College Color decided. The first issue of Nihon University Newspaper published.|
|1922||Yasukowa MATSUOKA inaugurated as the First President of Nihon University.|
|1923||Baron Kiichiro HIRANUMA, LL.D., the later Prime Minister, inaugurated as the Second President.|
|1925||Medical Department of Technical College (present: School of Medicine) established.|
|1929||New School Song (present school song) composed.|
|1933||Mannosuke YAMAOKA, LL.D. inaugurated as the Third President.|
|1936||The University Flag designed.|
|1943||College of Agriculture (present: College of Bioresource Sciences) established.|
|1946||Fumiaki KURE, D.Econ. inaugurated as the Fourth President.|
|1947||Engineering Department of Technical College (present: College of Engineering) moved to Koriyama-shi, Fukushima prefecture.|
|1948||Correspondence Division established.|
|1949||Become a university under the new educational system. “The Founding Spirit of the University” instituted.|
|1950||Junior College established.|
|1951||Graduate Schools based on the new school system established.|
|1952||Industrial Administration department (present: College of Industrial Technology) established.
Department of Pharmacy (present: College of Pharmacy) established.
|1958||Kikushiro NAGATA, LL.D. inaugurated as the Fifth President.|
|1959||“The Founding Spirit of the University” revised.|
|1969||Masaru SUZUKI, D.M. inaugurated as the Sixth President.|
|1971||Matsudo Dental University (present: College of Dentistry at Matsudo) established.|
|1978||College of International Relations established.|
|1984||Masayuki TAKANASHI, LL.D. inaugurated as the Seventh President.|
|1989||The Centennial Anniversary Ceremony held.|
|1990||Shigenori KINOSHITA, D.Eng. inaugurated as Eighth President.|
|1993||Yoshio SEZAI, D.Litt. inaugurated as the Ninth President.|
|1996||Yukiyasu SEZAI, MD. inaugurated as the Tenth President.|
|2005||Katsue KOJIMA, D.Eng. inaugurated as the Eleventh President.|
|2008||Takeo SAKAI, DVM, PhD. inaugurated as the Twelfth President|
|2011||Kichibee OTSUKA, D.D.S., Ph.D. inaugurated as the Thirteenth President|
|2021||Naoto KATO, Ph.D. inaugurated as the Fourteenth President|
|2022||Takeo SAKAI, DVM, PhD. inaugurated as the Fifteenth President|