15th Century
| Year | Date | Event |
|---|---|---|
| 1414 | The Habsburg Duke Ernest the Iron (1377–1424) thrones according to the ancient Karantanian ritual of installing dukes on the Duke's Stone and he addresses again as an archduke. | |
| 1451 | Celje acquires town rights by orders from Frederick II, the Count of Celje. | |
| 1461 | Ljubljana becomes the seat of a diocese. | |
| 1473 | The city walls and a defensive moat are built in Celje. |
Read more about this topic: Timeline Of Slovenian History