4th Century
| Year | Date | Event |
|---|---|---|
| 320 | Celeia is incorporated with Aquileia (Oglej) under Roman Emperor Constantine I. (272-337, reigned 307-337). |
Read more about this topic: Timeline Of Slovenian History
4th Century
| Year | Date | Event |
|---|---|---|
| 320 | Celeia is incorporated with Aquileia (Oglej) under Roman Emperor Constantine I. (272-337, reigned 307-337). |
Read more about this topic: Timeline Of Slovenian History