|May 31, 1949|
The National School Establishment Law was promulgated, and Ehime University was established as one of the 69 new national universities. The faculties were as follows. (Brackets indicate the schools amalgamated) Faculty of Humanities and Science (Matsuyama National High School)
|July 28, 1949||1949 The first entrance ceremony was held. 599 students were enrolled.|
|November 11, 1949||The ceremony for the establishment of the university was held in the Humanities and Science auditorium.|
|March 18, 1950||Emperor Hirohito visited Ehime University on his visit to Shikoku.|
|October 13, 1952||The Ehime University Institute of Regional Studies was established.|
|April 1, 1954||The Faculty of Agriculture was established with the gradual transfer of the Ehime Prefectural Agricultural University of Matsuyama to national control by academic year. The University Farm (Tarumi) and University Forest (Yokodani) were transferred at the same time.|
|June 18, 1954||The ceremony for the completion and conferral of the Great Hall donated to the university by the Tsuda Scholarship Foundation was held.|
|January 22, 1955||The ceremony for the completion of the new Memorial Auditorium was held. It was built in the Johoku area with donations from 88 people from Ehime living in Los Angeles, cooperation from supporters of the Faculty of Education, and a grant from the National Treasury.|
|April 1, 1956||The Ehime University Agricultural High School was established.|
|April 1, 1958||An Engineering major and Agriculture major were established.|
|October 30, 1961||The main building caught fire. The Administrative Office, Student Affairs Division and Faculty of Education Administration Building, and Social Studies Building were completely destroyed.|
|April 1, 1963||An Education major (Music) was established.|
|August 31, 1963||The Faculty of Engineering moved from Niihama to Johoku, Matsuyama.|
|June 1, 1967||The Graduate School of Engineering and Graduate School of Agriculture were established. |
All majors apart from the Agriculture major and Civil Engineering major of the Engineering major were discontinued.
|April 1, 1968||With the reorganization of the Faculty of Humanities and Science, the Faculty of Law and Letters, Faculty of Science, and Faculty of Liberal Arts were established. |
With the expansion of the Graduate School of Engineering Civil Engineering major, the Engineering major was discontinued.
|April 1, 1969||A Health Center was established.|
|April 1, 1971||The Faculty of Science Marine Laboratory was established.|
|April 1, 1972||A Science major was established. |
The Faculty of Education Nursing School was established.
|September 29, 1973||The School of Medicine was established. The former Ehime Prefecture Institute of Public Health and Ward 12 of the Matsuyama Red Cross Hospital were provided as interim facilities of the School of Medicine.|
|November 20, 1974||The School of Medicine moved from the interim facilities to Shizugawa, Shigenobu-cho, Onsen-gun.|
|May 10, 1976||The Ehime University Hospital was established.|
|April 1, 1978||The Graduate School of Science was established.|
|March 31, 1979||The Science major was eliminated.|
|April 1, 1979||The Graduate School of Medicine was established.|
The curriculum of the Faculty of Law and Letters was reorganized. The Day Course with classes conducted mainly during the day, was established, and Japan’s first Evening Course, with classes conducted mainly in the evening.
The School of Medicine Animal Testing Laboratory was established.
The Institute of Agricultural Environment Control was established.
|April 1, 1980||The Center for Education and Educational Research was established.|
|April 1, 1981||The Graduate School of Law was established.|
|July 12, 1982||The Information Processing Center was established.|
|April 1, 1983||The School of Medicine Laboratory Equipment Center was established.|
|April 11, 1984||The Instrumental Analysis Center was established.|
|April 1, 1985||The United Graduate School of Agricultural Sciences was established (3-year doctoral course).|
|April 1, 1989||The University Charter, school colors, and flag were established.|
|November 1, 1989||The Tropical and Subtropical Agriculture Special Course for Foreign Students was established in the United Graduate School of Agricultural Sciences.|
|December 25, 1991||The Foreign Student Advising Center was established.|
|April 1, 1992||The Graduate School of Engineering doctoral course was established.|
|April 1, 1993||The Education major was eliminated and the Graduate School of Education (master’s course) was established. |
The Information Processing Center was replaced by the General Information Processing Center.
With the implementation of the new Education program (integrated undergraduate education), the liberal arts course and specialist course were eliminated.
|June 2, 1993||The University Practical Education and Research Center was established.|
|June 24, 1994||The Regional Cooperative Research Center was established. |
The Ehime University Institute of Regional Studies was eliminated.
|March 31, 1996||The Faculty of Liberal Arts was eliminated.|
|April 1, 1996||The Graduate School of Science was eliminated. |
The Graduate School of Engineering was renamed, and the Graduate School of Science and Engineering was established.
|April 1, 1998||The Graduate School of Law was replaced by the Graduate School of Law and Letters. |
The Graduate School of Medicine was renamed, and the Graduate School of Medicine was established.
The Genetic Testing Laboratory was established.
|April 1, 2000||The Venture Business Laboratory was established.|
|April 1, 2001||The Geodynamics Research Center was established.|
|April 1, 2003||The Cell-Free Science and Technology Research Center was established.|
|April 1, 2004||Ehime University was incorporated as the National University Corporation Ehime University.|
|June 1, 2004||The Institute for Collaborative Relations was established.|
|December 1, 2004||The Institute for Education and Student Support was established.|
|April 1, 2006||The Advanced Research Support Organization was established.|
|July 1, 2007||The Research Center of Ancient East Asian Iron Culture was established.|
|November 1, 2007||The Research Center for Space and Cosmic Evolution was established.|
|April 1, 2008||The South Ehime Fisheries Research Center was established.|
|April 1, 2009||The Institute for International Relations was established.|