Trelleborg
The best-known of the Danish Viking ring fortresses, a precisely circular military camp built c. 980 CE.
Dated events and their evidence
- 980 CE mainstream
ring fortress built source
Where
55.3930° N, 11.2600° E
Sources
Each event carries Aion's own evidence grade (mainstream, disputed or speculative). This page repeats what the globe shows for this place.