| | |
|---|
| circa 700 | | First bishop's church built at the site of the present-day cathedral parish church Niedermünster (St. Erhard's tomb). |
| circa 739 | | Canonical erection of the diocese by Saint Boniface. He chose the area of the Porta Praetoria (North Gate of the old Roman fort) for the bishop's seat, and the site of the cathedral has remained there since. |
| late 8th or 9th century | | The Carolingian Cathedral is rebuilt. |
| early 11th century | | Large expansion to the west with an approx. 15-meter-high transept, two towers and an atrium. |
| 1156/1172 | | The cathedral burns down twice and is rebuilt. |
| 1273 | | Beginning of reconstruction at the west end after a city fire (approximately 1150) destroyed the old cathedral. |
| circa 1285/90 | | High Gothic redesign. |
| circa 1320 | | The three choirs of the new cathedral are ready for use. Demolition of the old cathedral. |
| 1385-1415 | | Completion of the elaborate main entrance to the west. |
| 1442 | | Construction of the roof support over the central nave. |
| circa 1520 | | Preliminary end of construction work. |
| 1514-1538 | | Construction of the cloister. |
| 1613-1649 | | Restoration of the cathedral and baroque renovation (cupola at the transept crossing). |
| 1828-1841 | | Gothic restoration at the order of King Ludwig I (e.g., relocation of the baroque frescoes) and demolition of the cupola; it is replaced by a quadripartite rib vault. |
| 1859-1869 | | Construction of the towers and completion of their spires. |
| 1870/1872 | | Completion of the cathedral with the finishing of the transept gable and the spire (at the crossing) after 600 years of construction. |
| 1923 | | Founding of the state-run Dombauhütte (Cathedral building workshop) for the ongoing oversight, maintenance, and restoration of the cathedral. |
| 1984-1985 | | Construction of the crypt mausoleum and archeological exploration of the center nave (partial exposure of a former southern arcade entrance to the atrium of a precursor Roman structure) |
| 1985-1988 | | Cleaning of the interior without changes. |
| since 1989 | | Cleaning of the exterior facade; removal of contaminants. The work on the main portal is expected to end in 2006. |
| 2004 | | Construction and altar consecration of the Sailer meditation chapel. |
| 2005 | | Cleaning of the tower spires is completed, so that the towers can be admired in their pristine state. According to the Dombauhütte, they should remain so for the next century. |
| 2006 | | Completion of the west portal restoration before the planned visit of Pope Benedict XVI. |