Since its foundation as a normal school in 1878, Yamagata University has grown to become a doctoral-granting, comprehensive public institution through two stages before and after 1949 when new government regulation in higher education came into effect.
|1878||Yamagata Prefectural Normal School (YPNS) including its elementary school opened.|
|1886||YPNS was renamed Yamagata Prefectural Junior Normal School (YPJNS).|
|1898||YPJNS was renamed Yamagata Prefectural Normal School (YPNS).|
|1902||Yamagata Prefectural Women's Normal School (YPWNS) opened.|
|1910||Yonezawa Higher Technical School (YHTS) opened.|
|1920||Yamagata High School (YHS) opened (and later became the Faculty of Literature and Science).|
|1922||Yamagata Prefectural Technical Continuation School Teacher Training Center (YPTCS- TTC) opened.|
|1935||YPTCS-TTC was renamed Teacher Training Center at Yamagata Prefectural Young Men's School (YPYMS-TTC).|
|1943||YPNS and YPWNS merged into Yamagata Normal School (YNS).|
|1944||YPYMS -TTC was renamed Yamagata Youth Normal School (YYNS).
YHTS was renamed Yonezawa Engineering College.
|1947||Yamagata Prefectural College of Agriculture and Forestry (YPCAF) and YNS junior high school opened.|
|1949||YHS, YNS, YYNS and YPAFC merged and became Yamagata University.|
|1949||YU started with four Faculties: Faculty of Literature and Science, Faculty of Education, Faculty of Engineering and Faculty of Agriculture.|
|1954||Junior College of Engineering established.|
|1964||Graduate School of Engineering established.|
|1967||Faculty of Literature & Social Sciences, Faculty of Science, and Division of General Education established.|
|1970||Graduate School of Agriculture established.|
|1971||Faculty of Literature and Science closed.|
|1973||Faculty of Medicine established.|
|1975||Special Needs School established.|
|1979||Graduate School of Science established.
Graduate School of Medical Science established.
|1985||Junior College of Engineering closed.|
|1990||United Graduate School of Agricultural Sciences established.|
|1993||Graduate School of Education established.|
|1996||Division of General Education closed.|
|1997||Graduate School of Social & Cultural Systems established.|
|1999||Graduate School of Engineering and Graduate School of Science merged and was renamed Graduate School of Science and Engineering.|
|2005||Faculty of Education was renamed Faculty of Education, Art and Science.|
|2009||Professional School of Education and Graduate School of Regional Education and Culture established.|
|2009||Institute of Art and Sciences established.|
Academic Assembly established.
Graduate School of Organic Materials Science established.
Faculty of Literature and Social Sciences closed.