Timeline
| 1789 - 1850 | First teachers' college in Pirna established |
| after 1873 | State teacher seminary founded |
| after 1922 | State school for a general higher education, 'Deutsche Oberschule' comes into being |
| 1937 | Amalgamation of the ‘Deutsche Oberschule‘ and the former municipal secondary school into a seondary school for boys |
| 1946 | The school got the name Rainer Fetscher. |
| after 1960 | Transformation into an extended secondary school (EOS) |
| after 1991 | After reunification, the school became a Gymnasium. |
| 1998 | 125th anniversary |
| 2006 | Beginning of reconstruction work in the building. |
| August 2007 | Closing of the Rainer Fetscher Gymnasium; students are taught at Friedrich Schiller Gymnasium. |
| November 2007 | The first reconstruction phase is finished. |
| February 2009 | The reconstruction work is complete. All Schiller Gymnasium students are taught in the new building in Seminarstrasse. |