University History
| 1949.5 | Saitama University was established under the National School Establishment Law. The School of Literature and Science was established. |
| 1965.4 | The School of Literature and Science was reorganized into the School of Liberal Arts,the School of Economics and the School of Science and Engineering. |
| 1973.9 | The Graduate School of Engineering was established |
| 1976.5 | The School of Science and Engineering was reorganized into the School of Science and the School of Engineering. |
| 1977.4 | The Graduate School of Cultural Science was established. |
| 1978.4 | The Graduate School of Science was established |
| 1989.4 | The Graduate School of Science and the Graduate School of Engineering was reorganized into the Graduate School of Science and Engineering.(Master Course,Doctoral Course) |
| 1990.4 | The Graduate School of Education was established. |
| 1993.4 | The Graduate School of Economic Science was established. |
| 1996.4 | Saitama University joined as a constituent university in the United Graduate School of Education (Doctoral Course) at Tokyo Gakugei University. |
| 2001.4 | The Geosphere Research Institute was established. |
| 2001.10 | The 21st Century Innovative Research Organization was established. |
| 2002.4 | The Graduate School of Economic Science was established.(Doctoral Course) |
| 2003.4 | The Graduate School of Cultural Science was established.(Doctoral Course) |
| 2004.4 | The National University Corporation Saitama University was established under the National University Corporation law. The Organization of Education and Student Support was established. |
| 2004.10 | The Information Infrastructure Organization was established. |
| 2005.1 | The 21st Century Innovative Research Organization was reorganized into the Innovative Research Organization. |
| 2006.7 | The Center for International Exchange was established. |
| 2008.4 | The Department of Environmental Science, the School of Engineering was established. |
| 2009.1 | The Brain Science Institute was established. |
| 2009.4 | The Institute for Environmental Science and Technology was established. |